diff --git a/OpenSim/Framework/AvatarAppearance.cs b/OpenSim/Framework/AvatarAppearance.cs
index 4f598b04ae..95e9667f6b 100644
--- a/OpenSim/Framework/AvatarAppearance.cs
+++ b/OpenSim/Framework/AvatarAppearance.cs
@@ -330,6 +330,9 @@ namespace OpenSim.Framework
             SetVisualParams(visualParams);
         }
 
+        /// <summary>
+        /// Set avatar height by a calculation based on their visual parameters.
+        /// </summary>
         public virtual void SetHeight()
         {
             // Start with shortest possible female avatar height
diff --git a/OpenSim/Framework/Client/IClientChat.cs b/OpenSim/Framework/Client/IClientChat.cs
index 078ea9b668..86b1faa8f6 100644
--- a/OpenSim/Framework/Client/IClientChat.cs
+++ b/OpenSim/Framework/Client/IClientChat.cs
@@ -33,7 +33,8 @@ namespace OpenSim.Framework.Client
     {
         event ChatMessage OnChatFromClient;
 
-        void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, byte source,
-                             byte audible);
+        void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, UUID ownerID, byte source,
+            byte audible);
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Framework/Console/ConsoleUtil.cs b/OpenSim/Framework/Console/ConsoleUtil.cs
index a7cf0c03b2..16a63e0ca5 100644
--- a/OpenSim/Framework/Console/ConsoleUtil.cs
+++ b/OpenSim/Framework/Console/ConsoleUtil.cs
@@ -27,88 +27,202 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using log4net;
 using OpenMetaverse;
 
-public class ConsoleUtil
+namespace OpenSim.Framework.Console
 {
-//    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
-
-    public const string MinRawConsoleVectorValue = "-~";
-    public const string MaxRawConsoleVectorValue = "~";
-
-    public const string VectorSeparator = ",";
-    public static char[] VectorSeparatorChars = VectorSeparator.ToCharArray();
-
-    /// <summary>
-    /// Convert a minimum vector input from the console to an OpenMetaverse.Vector3
-    /// </summary>
-    /// <param name='rawConsoleVector'>/param>
-    /// <param name='vector'></param>
-    /// <returns></returns>
-    public static bool TryParseConsoleMinVector(string rawConsoleVector, out Vector3 vector)
+    public class ConsoleUtil
     {
-        return TryParseConsoleVector(rawConsoleVector, c => float.MinValue.ToString(), out vector);
-    }
+    //    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-    /// <summary>
-    /// Convert a maximum vector input from the console to an OpenMetaverse.Vector3
-    /// </summary>
-    /// <param name='rawConsoleVector'>/param>
-    /// <param name='vector'></param>
-    /// <returns></returns>
-    public static bool TryParseConsoleMaxVector(string rawConsoleVector, out Vector3 vector)
-    {
-        return TryParseConsoleVector(rawConsoleVector, c => float.MaxValue.ToString(), out vector);
-    }
+        public const int LocalIdNotFound = 0;
+    
+        /// <summary>
+        /// Used by modules to display stock co-ordinate help, though possibly this should be under some general section
+        /// rather than in each help summary.
+        /// </summary>
+        public const string CoordHelp
+    = @"Each component of the coord is comma separated.  There must be no spaces between the commas.
+    If you don't care about the z component you can simply omit it.
+    If you don't care about the x or y components then you can leave them blank (though a comma is still required)
+    If you want to specify the maxmimum value of a component then you can use ~ instead of a number
+    If you want to specify the minimum value of a component then you can use -~ instead of a number
+    e.g.
+    delete object pos 20,20,20 to 40,40,40
+    delete object pos 20,20 to 40,40
+    delete object pos ,20,20 to ,40,40
+    delete object pos ,,30 to ,,~
+    delete object pos ,,-~ to ,,30";
+    
+        public const string MinRawConsoleVectorValue = "-~";
+        public const string MaxRawConsoleVectorValue = "~";
+    
+        public const string VectorSeparator = ",";
+        public static char[] VectorSeparatorChars = VectorSeparator.ToCharArray();
 
-    /// <summary>
-    /// Convert a vector input from the console to an OpenMetaverse.Vector3
-    /// </summary>
-    /// <param name='rawConsoleVector'>
-    /// A string in the form <x>,<y>,<z> where there is no space between values.
-    /// Any component can be missing (e.g. ,,40).  blankComponentFunc is invoked to replace the blank with a suitable value
-    /// Also, if the blank component is at the end, then the comma can be missed off entirely (e.g. 40,30 or 40)
-    /// The strings "~" and "-~" are valid in components.  The first substitutes float.MaxValue whilst the second is float.MinValue
-    /// Other than that, component values must be numeric.
-    /// </param>
-    /// <param name='blankComponentFunc'></param>
-    /// <param name='vector'></param>
-    /// <returns></returns>
-    public static bool TryParseConsoleVector(
-        string rawConsoleVector, Func<string, string> blankComponentFunc, out Vector3 vector)
-    {
-        List<string> components = rawConsoleVector.Split(VectorSeparatorChars).ToList();
-
-        if (components.Count < 1 || components.Count > 3)
+        /// <summary>
+        /// Check if the given file path exists.
+        /// </summary>
+        /// <remarks>If not, warning is printed to the given console.</remarks>
+        /// <returns>true if the file does not exist, false otherwise.</returns>
+        /// <param name='console'></param>
+        /// <param name='path'></param>
+        public static bool CheckFileDoesNotExist(ICommandConsole console, string path)
         {
-            vector = Vector3.Zero;
-            return false;
+            if (File.Exists(path))
+            {
+                console.OutputFormat("File {0} already exists.  Please move or remove it.", path);
+                return false;
+            }
+
+            return true;
+        }
+    
+        /// <summary>
+        /// Try to parse a console UUID from the console.
+        /// </summary>
+        /// <remarks>
+        /// Will complain to the console if parsing fails.
+        /// </remarks>
+        /// <returns></returns>
+        /// <param name='console'>If null then no complaint is printed.</param>
+        /// <param name='rawUuid'></param>
+        /// <param name='uuid'></param>
+        public static bool TryParseConsoleUuid(ICommandConsole console, string rawUuid, out UUID uuid)
+        {
+            if (!UUID.TryParse(rawUuid, out uuid))
+            {
+                if (console != null)
+                    console.OutputFormat("{0} is not a valid uuid", rawUuid);
+
+                return false;
+            }
+    
+            return true;
         }
 
-        for (int i = components.Count; i < 3; i++)
-            components.Add("");
+        public static bool TryParseConsoleLocalId(ICommandConsole console, string rawLocalId, out uint localId)
+        {
+            if (!uint.TryParse(rawLocalId, out localId))
+            {
+                if (console != null)
+                    console.OutputFormat("{0} is not a valid local id", localId);
 
-        List<string> semiDigestedComponents
-            = components.ConvertAll<string>(
-                c =>
-                {
-                    if (c == "")
-                        return blankComponentFunc.Invoke(c);
-                    else if (c == MaxRawConsoleVectorValue)
-                        return float.MaxValue.ToString();
-                    else if (c == MinRawConsoleVectorValue)
-                        return float.MinValue.ToString();
-                    else
-                        return c;
-                });
+                return false;
+            }
 
-        string semiDigestedConsoleVector = string.Join(VectorSeparator, semiDigestedComponents.ToArray());
+            if (localId == 0)
+            {
+                if (console != null)
+                    console.OutputFormat("{0} is not a valid local id - it must be greater than 0", localId);
 
-//        m_log.DebugFormat("[CONSOLE UTIL]: Parsing {0} into OpenMetaverse.Vector3", semiDigestedConsoleVector);
+                return false;
+            }
 
-        return Vector3.TryParse(semiDigestedConsoleVector, out vector);
+            return true;
+        }
+
+        /// <summary>
+        /// Tries to parse the input as either a UUID or a local ID.
+        /// </summary>
+        /// <returns>true if parsing succeeded, false otherwise.</returns>
+        /// <param name='console'></param>
+        /// <param name='rawId'></param>
+        /// <param name='uuid'></param>
+        /// <param name='localId'>
+        /// Will be set to ConsoleUtil.LocalIdNotFound if parsing result was a UUID or no parse succeeded.
+        /// </param>
+        public static bool TryParseConsoleId(ICommandConsole console, string rawId, out UUID uuid, out uint localId)
+        {
+            if (TryParseConsoleUuid(null, rawId, out uuid))
+            {
+                localId = LocalIdNotFound;
+                return true;
+            }
+
+            if (TryParseConsoleLocalId(null, rawId, out localId))
+            {
+                return true;
+            }
+
+            if (console != null)
+                console.OutputFormat("{0} is not a valid UUID or local id", rawId);
+
+            return false;
+        }
+    
+        /// <summary>
+        /// Convert a minimum vector input from the console to an OpenMetaverse.Vector3
+        /// </summary>
+        /// <param name='rawConsoleVector'>/param>
+        /// <param name='vector'></param>
+        /// <returns></returns>
+        public static bool TryParseConsoleMinVector(string rawConsoleVector, out Vector3 vector)
+        {
+            return TryParseConsoleVector(rawConsoleVector, c => float.MinValue.ToString(), out vector);
+        }
+    
+        /// <summary>
+        /// Convert a maximum vector input from the console to an OpenMetaverse.Vector3
+        /// </summary>
+        /// <param name='rawConsoleVector'>/param>
+        /// <param name='vector'></param>
+        /// <returns></returns>
+        public static bool TryParseConsoleMaxVector(string rawConsoleVector, out Vector3 vector)
+        {
+            return TryParseConsoleVector(rawConsoleVector, c => float.MaxValue.ToString(), out vector);
+        }
+    
+        /// <summary>
+        /// Convert a vector input from the console to an OpenMetaverse.Vector3
+        /// </summary>
+        /// <param name='rawConsoleVector'>
+        /// A string in the form <x>,<y>,<z> where there is no space between values.
+        /// Any component can be missing (e.g. ,,40).  blankComponentFunc is invoked to replace the blank with a suitable value
+        /// Also, if the blank component is at the end, then the comma can be missed off entirely (e.g. 40,30 or 40)
+        /// The strings "~" and "-~" are valid in components.  The first substitutes float.MaxValue whilst the second is float.MinValue
+        /// Other than that, component values must be numeric.
+        /// </param>
+        /// <param name='blankComponentFunc'></param>
+        /// <param name='vector'></param>
+        /// <returns></returns>
+        public static bool TryParseConsoleVector(
+            string rawConsoleVector, Func<string, string> blankComponentFunc, out Vector3 vector)
+        {
+            List<string> components = rawConsoleVector.Split(VectorSeparatorChars).ToList();
+    
+            if (components.Count < 1 || components.Count > 3)
+            {
+                vector = Vector3.Zero;
+                return false;
+            }
+    
+            for (int i = components.Count; i < 3; i++)
+                components.Add("");
+    
+            List<string> semiDigestedComponents
+                = components.ConvertAll<string>(
+                    c =>
+                    {
+                        if (c == "")
+                            return blankComponentFunc.Invoke(c);
+                        else if (c == MaxRawConsoleVectorValue)
+                            return float.MaxValue.ToString();
+                        else if (c == MinRawConsoleVectorValue)
+                            return float.MinValue.ToString();
+                        else
+                            return c;
+                    });
+    
+            string semiDigestedConsoleVector = string.Join(VectorSeparator, semiDigestedComponents.ToArray());
+    
+    //        m_log.DebugFormat("[CONSOLE UTIL]: Parsing {0} into OpenMetaverse.Vector3", semiDigestedConsoleVector);
+    
+            return Vector3.TryParse(semiDigestedConsoleVector, out vector);
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index 9856978cfd..87433cc3cb 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -1099,8 +1099,20 @@ namespace OpenSim.Framework
         void SendAnimations(UUID[] animID, int[] seqs, UUID sourceAgentId, UUID[] objectIDs);
         void SendRegionHandshake(RegionInfo regionInfo, RegionHandshakeArgs args);
 
-        void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, byte source,
-                             byte audible);
+        /// <summary>
+        /// Send chat to the viewer.
+        /// </summary>
+        /// <param name='message'></param>
+        /// <param name='type'></param>
+        /// <param name='fromPos'></param>
+        /// <param name='fromName'></param>
+        /// <param name='fromAgentID'></param>
+        /// <param name='ownerID'></param>
+        /// <param name='source'></param>
+        /// <param name='audible'></param>
+        void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, UUID ownerID, byte source,
+            byte audible);
 
         void SendInstantMessage(GridInstantMessage im);
 
diff --git a/OpenSim/Framework/Monitoring/StatsManager.cs b/OpenSim/Framework/Monitoring/StatsManager.cs
index 31989e50ad..4844336e31 100644
--- a/OpenSim/Framework/Monitoring/StatsManager.cs
+++ b/OpenSim/Framework/Monitoring/StatsManager.cs
@@ -207,7 +207,7 @@ namespace OpenSim.Framework.Monitoring
                     return false;
 
                 newContainer = new Dictionary<string, Stat>(container);
-                newContainer.Remove(stat.UniqueName);
+                newContainer.Remove(stat.ShortName);
 
                 newCategory = new Dictionary<string, Dictionary<string, Stat>>(category);
                 newCategory.Remove(stat.Container);
@@ -248,6 +248,19 @@ namespace OpenSim.Framework.Monitoring
         }
     }
 
+    /// <summary>
+    /// Stat type.
+    /// </summary>
+    /// <remarks>
+    /// A push stat is one which is continually updated and so it's value can simply by read.
+    /// A pull stat is one where reading the value triggers a collection method - the stat is not continually updated.
+    /// </remarks>
+    public enum StatType
+    {
+        Push,
+        Pull
+    }
+
     /// <summary>
     /// Verbosity of stat.
     /// </summary>
@@ -265,11 +278,6 @@ namespace OpenSim.Framework.Monitoring
     /// </summary>
     public class Stat
     {
-        /// <summary>
-        /// Unique stat name used for indexing.  Each ShortName in a Category must be unique.
-        /// </summary>
-        public string UniqueName { get; private set; }
-
         /// <summary>
         /// Category of this stat (e.g. cache, scene, etc).
         /// </summary>
@@ -285,29 +293,65 @@ namespace OpenSim.Framework.Monitoring
         /// </value>
         public string Container { get; private set; }
 
+        public StatType StatType { get; private set; }
+
+        /// <summary>
+        /// Action used to update this stat when the value is requested if it's a pull type.
+        /// </summary>
+        public Action<Stat> PullAction { get; private set; }
+
         public StatVerbosity Verbosity { get; private set; }
         public string ShortName { get; private set; }
         public string Name { get; private set; }
         public string Description { get; private set; }
         public virtual string UnitName { get; private set; }
 
-        public virtual double Value { get; set; }
+        public virtual double Value
+        {
+            get
+            {
+                // Asking for an update here means that the updater cannot access this value without infinite recursion.
+                // XXX: A slightly messy but simple solution may be to flick a flag so we can tell if this is being
+                // called by the pull action and just return the value.
+                if (StatType == StatType.Pull)
+                    PullAction(this);
+
+                return m_value;
+            }
+
+            set
+            {
+                m_value = value;
+            }
+        }
+
+        private double m_value;
 
         /// <summary>
         /// Constructor
         /// </summary>
         /// <param name='shortName'>Short name for the stat.  Must not contain spaces.  e.g. "LongFrames"</param>
         /// <param name='name'>Human readable name for the stat.  e.g. "Long frames"</param>
+        /// <param name='description'>Description of stat</param>
         /// <param name='unitName'>
         /// Unit name for the stat.  Should be preceeded by a space if the unit name isn't normally appeneded immediately to the value.
         /// e.g. " frames"
         /// </param>
         /// <param name='category'>Category under which this stat should appear, e.g. "scene".  Do not capitalize.</param>
         /// <param name='container'>Entity to which this stat relates.  e.g. scene name if this is a per scene stat.</param>
+        /// <param name='type'>Push or pull</param>
+        /// <param name='pullAction'>Pull stats need an action to update the stat on request.  Push stats should set null here.</param>
         /// <param name='verbosity'>Verbosity of stat.  Controls whether it will appear in short stat display or only full display.</param>
-        /// <param name='description'>Description of stat</param>
         public Stat(
-            string shortName, string name, string unitName, string category, string container, StatVerbosity verbosity, string description)
+            string shortName,
+            string name,
+            string description,
+            string unitName,
+            string category,
+            string container,
+            StatType type,
+            Action<Stat> pullAction,
+            StatVerbosity verbosity)
         {
             if (StatsManager.SubCommands.Contains(category))
                 throw new Exception(
@@ -315,18 +359,18 @@ namespace OpenSim.Framework.Monitoring
 
             ShortName = shortName;
             Name = name;
+            Description = description;
             UnitName = unitName;
             Category = category;
             Container = container;
+            StatType = type;
+
+            if (StatType == StatType.Push && pullAction != null)
+                throw new Exception("A push stat cannot have a pull action");
+            else
+                PullAction = pullAction;
+
             Verbosity = verbosity;
-            Description = description;
-
-            UniqueName = GenUniqueName(Container, Category, ShortName);
-        }
-
-        public static string GenUniqueName(string container, string category, string shortName)
-        {
-            return string.Format("{0}+{1}+{2}", container, category, shortName);
         }
 
         public virtual string ToConsoleString()
@@ -361,8 +405,15 @@ namespace OpenSim.Framework.Monitoring
         }
 
         public PercentageStat(
-            string shortName, string name, string category, string container, StatVerbosity verbosity, string description)
-            : base(shortName, name, "%", category, container, verbosity, description) {}
+            string shortName,
+            string name,
+            string description,
+            string category,
+            string container,
+            StatType type,
+            Action<Stat> pullAction,
+            StatVerbosity verbosity)
+            : base(shortName, name, description, "%", category, container, type, pullAction, verbosity) {}
 
         public override string ToConsoleString()
         {
diff --git a/OpenSim/Framework/Pool.cs b/OpenSim/Framework/Pool.cs
index 1ca06c3065..5484f5c2d5 100644
--- a/OpenSim/Framework/Pool.cs
+++ b/OpenSim/Framework/Pool.cs
@@ -38,8 +38,23 @@ namespace OpenSim.Framework
     /// </remarks>
     public class Pool<T>
     {
+        /// <summary>
+        /// Number of objects in the pool.
+        /// </summary>
+        public int Count
+        {
+            get
+            {
+                lock (m_pool)
+                    return m_pool.Count;
+            }
+        }
+
         private Stack<T> m_pool;
 
+        /// <summary>
+        /// Maximum pool size.  Beyond this, any returned objects are not pooled.
+        /// </summary>
         private int m_maxPoolSize;
 
         private Func<T> m_createFunction;
diff --git a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
index b018e57c45..410a76a798 100644
--- a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
@@ -542,11 +542,8 @@ namespace OpenSim.Framework.Servers.HttpServer
                     {
                         case null:
                         case "text/html":
-    
                             if (DebugLevel >= 3)
-                                m_log.DebugFormat(
-                                    "[BASE HTTP SERVER]: HTTP IN {0} :{1} {2} content type handler {3} {4} from {5}",
-                                    RequestNumber, Port, request.ContentType, request.HttpMethod, request.Url.PathAndQuery, request.RemoteIPEndPoint);
+                                LogIncomingToContentTypeHandler(request);
     
                             buffer = HandleHTTPRequest(request, response);
                             break;
@@ -554,11 +551,8 @@ namespace OpenSim.Framework.Servers.HttpServer
                         case "application/llsd+xml":
                         case "application/xml+llsd":
                         case "application/llsd+json":
-    
                             if (DebugLevel >= 3)
-                                m_log.DebugFormat(
-                                    "[BASE HTTP SERVER]: HTTP IN {0} :{1} {2} content type handler {3} {4} from {5}",
-                                    RequestNumber, Port, request.ContentType, request.HttpMethod, request.Url.PathAndQuery, request.RemoteIPEndPoint);
+                                LogIncomingToContentTypeHandler(request);
     
                             buffer = HandleLLSDRequests(request, response);
                             break;
@@ -693,7 +687,7 @@ namespace OpenSim.Framework.Servers.HttpServer
                 "[BASE HTTP SERVER]: HTTP IN {0} :{1} {2} content type handler {3} {4} from {5}",
                 RequestNumber,
                 Port,
-                request.ContentType,
+                (request.ContentType == null || request.ContentType == "") ? "not set" : request.ContentType,
                 request.HttpMethod,
                 request.Url.PathAndQuery,
                 request.RemoteIPEndPoint);
diff --git a/OpenSim/Region/Application/OpenSimBase.cs b/OpenSim/Region/Application/OpenSimBase.cs
index 4f1b4392ad..7b591a88be 100644
--- a/OpenSim/Region/Application/OpenSimBase.cs
+++ b/OpenSim/Region/Application/OpenSimBase.cs
@@ -543,7 +543,7 @@ namespace OpenSim
             if (account == null)
             {
                 m_log.ErrorFormat(
-                    "[OPENSIM]: Unable to store account. If this simulator is connected to a grid, you must create the estate owner account first.");
+                    "[OPENSIM]: Unable to store account. If this simulator is connected to a grid, you must create the estate owner account first at the grid level.");
             }
             else
             {
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 7427c5947a..8e5a6d2b42 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -817,8 +817,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             OutPacket(mov, ThrottleOutPacketType.Unknown);
         }
 
-        public void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName,
-                                    UUID fromAgentID, byte source, byte audible)
+        public void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
             ChatFromSimulatorPacket reply = (ChatFromSimulatorPacket)PacketPool.Instance.GetPacket(PacketType.ChatFromSimulator);
             reply.ChatData.Audible = audible;
@@ -827,7 +828,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             reply.ChatData.SourceType = source;
             reply.ChatData.Position = fromPos;
             reply.ChatData.FromName = Util.StringToBytes256(fromName);
-            reply.ChatData.OwnerID = fromAgentID;
+            reply.ChatData.OwnerID = ownerID;
             reply.ChatData.SourceID = fromAgentID;
 
             OutPacket(reply, ThrottleOutPacketType.Task);
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index 419de66e7b..14cc863f6b 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -170,6 +170,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         private Pool<IncomingPacket> m_incomingPacketPool;
 
+        private Stat m_incomingPacketPoolStat;
+
         private int m_defaultRTO = 0;
         private int m_maxRTO = 0;
         private int m_ackTimeout = 0;
@@ -214,6 +216,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_circuitManager = circuitManager;
             int sceneThrottleBps = 0;
+            bool usePools = false;
 
             IConfig config = configSource.Configs["ClientStack.LindenUDP"];
             if (config != null)
@@ -246,7 +249,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 PacketPool.Instance.RecyclePackets = packetConfig.GetBoolean("RecyclePackets", true);
                 PacketPool.Instance.RecycleDataBlocks = packetConfig.GetBoolean("RecycleDataBlocks", true);
-                UsePools = packetConfig.GetBoolean("RecycleBaseUDPPackets", false);
+                usePools = packetConfig.GetBoolean("RecycleBaseUDPPackets", usePools);
             }
 
             #region BinaryStats
@@ -277,8 +280,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             m_throttle = new TokenBucket(null, sceneThrottleBps);
             ThrottleRates = new ThrottleRates(configSource);
 
-            if (UsePools)
-                m_incomingPacketPool = new Pool<IncomingPacket>(() => new IncomingPacket(), 500);
+            if (usePools)
+                EnablePools();
         }
 
         public void Start()
@@ -331,6 +334,50 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             base.StopInbound();
         }
 
+        protected override bool EnablePools()
+        {
+            if (!UsePools)
+            {
+                base.EnablePools();
+
+                m_incomingPacketPool = new Pool<IncomingPacket>(() => new IncomingPacket(), 500);
+
+                m_incomingPacketPoolStat
+                    = new Stat(
+                        "IncomingPacketPoolCount",
+                        "Objects within incoming packet pool",
+                        "The number of objects currently stored within the incoming packet pool",
+                        "",
+                        "clientstack",
+                        "packetpool",
+                        StatType.Pull,
+                        stat => stat.Value = m_incomingPacketPool.Count,
+                        StatVerbosity.Debug);
+
+                StatsManager.RegisterStat(m_incomingPacketPoolStat);
+
+                return true;
+            }
+
+            return false;
+        }
+
+        protected override bool DisablePools()
+        {
+            if (UsePools)
+            {
+                base.DisablePools();
+
+                StatsManager.DeregisterStat(m_incomingPacketPoolStat);
+
+                // We won't null out the pool to avoid a race condition with code that may be in the middle of using it.
+
+                return true;
+            }
+
+            return false;
+        }
+
         /// <summary>
         /// If the outgoing UDP thread times out, then return client that was being processed to help with debugging.
         /// </summary>
@@ -394,6 +441,14 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     + "all - stop in and outbound processing.\n",
                 HandleStopCommand);
 
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp pool",
+                "debug lludp pool <on|off>",
+                "Turn object pooling within the lludp component on or off.",
+                HandlePoolCommand);
+
             MainConsole.Instance.Commands.AddCommand(
                 "Debug",
                 false,
@@ -437,6 +492,32 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 StopOutbound();
         }
 
+        private void HandlePoolCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp pool <on|off>");
+                return;
+            }
+
+            string enabled = args[3];
+
+            if (enabled == "on")
+            {
+                if (EnablePools())
+                    MainConsole.Instance.OutputFormat("Packet pools enabled on {0}", m_scene.Name);
+            }
+            else if (enabled == "off")
+            {
+                if (DisablePools())
+                    MainConsole.Instance.OutputFormat("Packet pools disabled on {0}", m_scene.Name);
+            }
+            else
+            {
+                MainConsole.Instance.Output("Usage: debug lludp pool <on|off>");
+            }
+        }
+
         private void HandleStatusCommand(string module, string[] args)
         {
             MainConsole.Instance.OutputFormat(
@@ -444,6 +525,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             MainConsole.Instance.OutputFormat(
                 "OUT LLUDP packet processing for {0} is {1}", m_scene.Name, IsRunningOutbound ? "enabled" : "disabled");
+
+            MainConsole.Instance.OutputFormat("LLUDP pools in {0} are {1}", m_scene.Name, UsePools ? "on" : "off");
         }
 
         public bool HandlesRegion(Location x)
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index 6e6b3ef1b5..85cbb0659b 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -31,6 +31,7 @@ using System.Net.Sockets;
 using System.Threading;
 using log4net;
 using OpenSim.Framework;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenMetaverse
 {
@@ -76,6 +77,8 @@ namespace OpenMetaverse
         /// <remarks>If IsRunningOut = false, then any request to send a packet is simply dropped.</remarks>
         public bool IsRunningOutbound { get; private set; }
 
+        private Stat m_poolCountStat;
+
         /// <summary>
         /// Default constructor
         /// </summary>
@@ -106,11 +109,6 @@ namespace OpenMetaverse
         /// necessary</remarks>
         public void StartInbound(int recvBufferSize, bool asyncPacketHandling)
         {
-            if (UsePools)
-                m_pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
-            else
-                m_pool = null;
-
             m_asyncPacketHandling = asyncPacketHandling;
 
             if (!IsRunningInbound)
@@ -180,6 +178,49 @@ namespace OpenMetaverse
             IsRunningOutbound = false;
         }
 
+        protected virtual bool EnablePools()
+        {
+            if (!UsePools)
+            {
+                m_pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
+
+                m_poolCountStat
+                    = new Stat(
+                        "UDPPacketBufferPoolCount",
+                        "Objects within the UDPPacketBuffer pool",
+                        "The number of objects currently stored within the UDPPacketBuffer pool",
+                        "",
+                        "clientstack",
+                        "packetpool",
+                        StatType.Pull,
+                        stat => stat.Value = m_pool.Count,
+                        StatVerbosity.Debug);
+
+                StatsManager.RegisterStat(m_poolCountStat);
+
+                UsePools = true;
+
+                return true;
+            }
+
+            return false;
+        }
+
+        protected virtual bool DisablePools()
+        {
+            if (UsePools)
+            {
+                UsePools = false;
+                StatsManager.DeregisterStat(m_poolCountStat);
+
+                // We won't null out the pool to avoid a race condition with code that may be in the middle of using it.
+
+                return true;
+            }
+
+            return false;
+        }
+
         private void AsyncBeginReceive()
         {
             UDPPacketBuffer buf;
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
index 2a3d14f69f..9f22fb48ec 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
@@ -47,18 +47,22 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private PercentageStat m_packetsReusedStat = new PercentageStat(
             "PacketsReused",
             "Packets reused",
+            "Number of packets reused out of all requests to the packet pool",
             "clientstack",
             "packetpool",
-            StatVerbosity.Debug,
-            "Number of packets reused out of all requests to the packet pool");
+            StatType.Push,
+            null,
+            StatVerbosity.Debug);
 
         private PercentageStat m_blocksReusedStat = new PercentageStat(
-            "BlocksReused",
-            "Blocks reused",
+            "PacketDataBlocksReused",
+            "Packet data blocks reused",
+            "Number of data blocks reused out of all requests to the packet pool",
             "clientstack",
             "packetpool",
-            StatVerbosity.Debug,
-            "Number of data blocks reused out of all requests to the packet pool");
+            StatType.Push,
+            null,
+            StatVerbosity.Debug);
 
         /// <summary>
         /// Pool of packets available for reuse.
@@ -88,6 +92,30 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             StatsManager.RegisterStat(m_packetsReusedStat);
             StatsManager.RegisterStat(m_blocksReusedStat);
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketsPoolCount",
+                    "Objects within the packet pool",
+                    "The number of objects currently stored within the packet pool",
+                    "",
+                    "clientstack",
+                    "packetpool",
+                    StatType.Pull,
+                    stat => { lock (pool) { stat.Value = pool.Count; } },
+                    StatVerbosity.Debug));
+
+            StatsManager.RegisterStat(
+                new Stat(
+                    "PacketDataBlocksPoolCount",
+                    "Objects within the packet data block pool",
+                    "The number of objects currently stored within the packet data block pool",
+                    "",
+                    "clientstack",
+                    "packetpool",
+                    StatType.Pull,
+                    stat => { lock (DataBlocks) { stat.Value = DataBlocks.Count; } },
+                    StatVerbosity.Debug));
         }
 
         /// <summary>
diff --git a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
index e4452fbb87..ddf92c3e44 100644
--- a/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs
@@ -186,6 +186,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
         {
             string fromName = c.From;
             UUID fromID = UUID.Zero;
+            UUID ownerID = UUID.Zero;
             UUID targetID = c.TargetUUID;
             string message = c.Message;
             IScene scene = c.Scene;
@@ -208,12 +209,16 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                 fromPos = avatar.AbsolutePosition;
                 fromName = avatar.Name;
                 fromID = c.Sender.AgentId;
+                ownerID = c.Sender.AgentId;
 
                 break;
 
             case ChatSourceType.Object:
                 fromID = c.SenderUUID;
 
+                if (c.SenderObject != null && c.SenderObject is SceneObjectPart)
+                    ownerID = ((SceneObjectPart)c.SenderObject).OwnerID;
+
                 break;
             }
 
@@ -236,7 +241,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                     s.ForEachRootScenePresence(
                         delegate(ScenePresence presence)
                         {
-                            if (TrySendChatMessage(presence, fromPos, regionPos, fromID, fromName, c.Type, message, sourceType, false))
+                            if (TrySendChatMessage(
+                                presence, fromPos, regionPos, fromID, ownerID, fromName, c.Type, message, sourceType, false))
                                 receiverIDs.Add(presence.UUID);
                         }
                     );
@@ -248,8 +254,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                     ScenePresence presence = s.GetScenePresence(targetID);
                     if (presence != null && !presence.IsChildAgent)
                     {
-                        if (TrySendChatMessage(presence, fromPos, regionPos, fromID, fromName, ChatTypeEnum.Say, message, sourceType, true))
-                                receiverIDs.Add(presence.UUID);
+                        if (TrySendChatMessage(
+                            presence, fromPos, regionPos, fromID, ownerID, fromName, ChatTypeEnum.Say, message, sourceType, true))
+                            receiverIDs.Add(presence.UUID);
                     }
                 }
             }
@@ -305,9 +312,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                         (null != c.SenderObject) &&
                         (((SceneObjectPart)c.SenderObject).OwnerID != client.AgentId))
                         return;
-                    
-                    client.SendChatMessage(c.Message, (byte)cType, CenterOfRegion, fromName, fromID, 
-                                            (byte)sourceType, (byte)ChatAudibleLevel.Fully);
+
+                    client.SendChatMessage(
+                        c.Message, (byte)cType, CenterOfRegion, fromName, fromID, fromID,
+                        (byte)sourceType, (byte)ChatAudibleLevel.Fully);
+
                     receiverIDs.Add(client.AgentId);
                 });
             
@@ -322,15 +331,20 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
         /// <param name="fromPos"></param>
         /// <param name="regionPos">/param>
         /// <param name="fromAgentID"></param>
+        /// <param name='ownerID'>
+        /// Owner of the message.  For at least some messages from objects, this has to be correctly filled with the owner's UUID.
+        /// This is the case for script error messages in viewer 3 since LLViewer change EXT-7762
+        /// </param>
         /// <param name="fromName"></param>
         /// <param name="type"></param>
         /// <param name="message"></param>
         /// <param name="src"></param>
         /// <returns>true if the message was sent to the receiver, false if it was not sent due to failing a 
         /// precondition</returns>
-        protected virtual bool TrySendChatMessage(ScenePresence presence, Vector3 fromPos, Vector3 regionPos,
-                                                  UUID fromAgentID, string fromName, ChatTypeEnum type,
-                                                  string message, ChatSourceType src, bool ignoreDistance)
+        protected virtual bool TrySendChatMessage(
+            ScenePresence presence, Vector3 fromPos, Vector3 regionPos,
+            UUID fromAgentID, UUID ownerID, string fromName, ChatTypeEnum type,
+            string message, ChatSourceType src, bool ignoreDistance)
         {
             // don't send stuff to child agents
             if (presence.IsChildAgent) return false;
@@ -353,10 +367,11 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
             }
 
             // TODO: should change so the message is sent through the avatar rather than direct to the ClientView
-            presence.ControllingClient.SendChatMessage(message, (byte) type, fromPos, fromName,
-                                                       fromAgentID, (byte)src, (byte)ChatAudibleLevel.Fully);
+            presence.ControllingClient.SendChatMessage(
+                message, (byte) type, fromPos, fromName,
+                fromAgentID, ownerID, (byte)src, (byte)ChatAudibleLevel.Fully);
             
             return true;
         }
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
index cf870100a4..afe12003b1 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/InventoryArchiverModule.cs
@@ -35,6 +35,7 @@ using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications;
+using OpenSim.Framework.Console;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Services.Interfaces;
@@ -209,6 +210,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver
             Guid id, string firstName, string lastName, string invPath, string pass, string savePath,
             Dictionary<string, object> options)
         {
+            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, savePath))
+                return false;
+
             if (m_scenes.Count > 0)
             {
                 UserAccount userInfo = GetUserInfo(firstName, lastName, pass);
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
index 33b48393fb..8ff20ddb08 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Transfer/InventoryTransferModule.cs
@@ -38,15 +38,15 @@ using OpenSim.Services.Interfaces;
 
 namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 {
-    public class InventoryTransferModule : IInventoryTransferModule, ISharedRegionModule
+    public class InventoryTransferModule : ISharedRegionModule
     {
         private static readonly ILog m_log
             = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         /// <summary>
         private List<Scene> m_Scenelist = new List<Scene>();
-        private Dictionary<UUID, Scene> m_AgentRegions =
-                new Dictionary<UUID, Scene>();
+//        private Dictionary<UUID, Scene> m_AgentRegions =
+//                new Dictionary<UUID, Scene>();
 
         private IMessageTransferModule m_TransferModule = null;
         private bool m_Enabled = true;
@@ -76,12 +76,12 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
             m_Scenelist.Add(scene);
 
-            scene.RegisterModuleInterface<IInventoryTransferModule>(this);
+//            scene.RegisterModuleInterface<IInventoryTransferModule>(this);
 
             scene.EventManager.OnNewClient += OnNewClient;
-            scene.EventManager.OnClientClosed += ClientLoggedOut;
+//            scene.EventManager.OnClientClosed += ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage += OnGridInstantMessage;
-            scene.EventManager.OnSetRootAgentScene += OnSetRootAgentScene;
+//            scene.EventManager.OnSetRootAgentScene += OnSetRootAgentScene;
         }
 
         public void RegionLoaded(Scene scene)
@@ -96,9 +96,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
 
                     m_Scenelist.Clear();
                     scene.EventManager.OnNewClient -= OnNewClient;
-                    scene.EventManager.OnClientClosed -= ClientLoggedOut;
+//                    scene.EventManager.OnClientClosed -= ClientLoggedOut;
                     scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-                    scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
+//                    scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
                 }
             }
         }
@@ -106,9 +106,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
         public void RemoveRegion(Scene scene)
         {
             scene.EventManager.OnNewClient -= OnNewClient;
-            scene.EventManager.OnClientClosed -= ClientLoggedOut;
+//            scene.EventManager.OnClientClosed -= ClientLoggedOut;
             scene.EventManager.OnIncomingInstantMessage -= OnGridInstantMessage;
-            scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
+//            scene.EventManager.OnSetRootAgentScene -= OnSetRootAgentScene;
             m_Scenelist.Remove(scene);
         }
 
@@ -138,10 +138,10 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             client.OnInstantMessage += OnInstantMessage;
         }
         
-        protected void OnSetRootAgentScene(UUID id, Scene scene)
-        {
-            m_AgentRegions[id] = scene;
-        }
+//        protected void OnSetRootAgentScene(UUID id, Scene scene)
+//        {
+//            m_AgentRegions[id] = scene;
+//        }
 
         private Scene FindClientScene(UUID agentId)
         {
@@ -448,69 +448,69 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Transfer
             }
         }
 
-        public bool NeedSceneCacheClear(UUID agentID, Scene scene)
-        {
-            if (!m_AgentRegions.ContainsKey(agentID))
-            {
-                // Since we can get here two ways, we need to scan
-                // the scenes here. This is somewhat more expensive
-                // but helps avoid a nasty bug
-                //
-
-                foreach (Scene s in m_Scenelist)
-                {
-                    ScenePresence presence;
-
-                    if (s.TryGetScenePresence(agentID, out presence))
-                    {
-                        // If the agent is in this scene, then we
-                        // are being called twice in a single
-                        // teleport. This is wasteful of cycles
-                        // but harmless due to this 2nd level check
-                        //
-                        // If the agent is found in another scene
-                        // then the list wasn't current
-                        //
-                        // If the agent is totally unknown, then what
-                        // are we even doing here??
-                        //
-                        if (s == scene)
-                        {
-                            //m_log.Debug("[INVTRANSFERMOD]: s == scene. Returning true in " + scene.RegionInfo.RegionName);
-                            return true;
-                        }
-                        else
-                        {
-                            //m_log.Debug("[INVTRANSFERMOD]: s != scene. Returning false in " + scene.RegionInfo.RegionName);
-                            return false;
-                        }
-                    }
-                }
-                //m_log.Debug("[INVTRANSFERMOD]: agent not in scene. Returning true in " + scene.RegionInfo.RegionName);
-                return true;
-            }
-
-            // The agent is left in current Scene, so we must be
-            // going to another instance
-            //
-            if (m_AgentRegions[agentID] == scene)
-            {
-                //m_log.Debug("[INVTRANSFERMOD]: m_AgentRegions[agentID] == scene. Returning true in " + scene.RegionInfo.RegionName);
-                m_AgentRegions.Remove(agentID);
-                return true;
-            }
-
-            // Another region has claimed the agent
-            //
-            //m_log.Debug("[INVTRANSFERMOD]: last resort. Returning false in " + scene.RegionInfo.RegionName);
-            return false;
-        }
-
-        public void ClientLoggedOut(UUID agentID, Scene scene)
-        {
-            if (m_AgentRegions.ContainsKey(agentID))
-                m_AgentRegions.Remove(agentID);
-        }
+//        public bool NeedSceneCacheClear(UUID agentID, Scene scene)
+//        {
+//            if (!m_AgentRegions.ContainsKey(agentID))
+//            {
+//                // Since we can get here two ways, we need to scan
+//                // the scenes here. This is somewhat more expensive
+//                // but helps avoid a nasty bug
+//                //
+//
+//                foreach (Scene s in m_Scenelist)
+//                {
+//                    ScenePresence presence;
+//
+//                    if (s.TryGetScenePresence(agentID, out presence))
+//                    {
+//                        // If the agent is in this scene, then we
+//                        // are being called twice in a single
+//                        // teleport. This is wasteful of cycles
+//                        // but harmless due to this 2nd level check
+//                        //
+//                        // If the agent is found in another scene
+//                        // then the list wasn't current
+//                        //
+//                        // If the agent is totally unknown, then what
+//                        // are we even doing here??
+//                        //
+//                        if (s == scene)
+//                        {
+//                            //m_log.Debug("[INVTRANSFERMOD]: s == scene. Returning true in " + scene.RegionInfo.RegionName);
+//                            return true;
+//                        }
+//                        else
+//                        {
+//                            //m_log.Debug("[INVTRANSFERMOD]: s != scene. Returning false in " + scene.RegionInfo.RegionName);
+//                            return false;
+//                        }
+//                    }
+//                }
+//                //m_log.Debug("[INVTRANSFERMOD]: agent not in scene. Returning true in " + scene.RegionInfo.RegionName);
+//                return true;
+//            }
+//
+//            // The agent is left in current Scene, so we must be
+//            // going to another instance
+//            //
+//            if (m_AgentRegions[agentID] == scene)
+//            {
+//                //m_log.Debug("[INVTRANSFERMOD]: m_AgentRegions[agentID] == scene. Returning true in " + scene.RegionInfo.RegionName);
+//                m_AgentRegions.Remove(agentID);
+//                return true;
+//            }
+//
+//            // Another region has claimed the agent
+//            //
+//            //m_log.Debug("[INVTRANSFERMOD]: last resort. Returning false in " + scene.RegionInfo.RegionName);
+//            return false;
+//        }
+//
+//        public void ClientLoggedOut(UUID agentID, Scene scene)
+//        {
+//            if (m_AgentRegions.ContainsKey(agentID))
+//                m_AgentRegions.Remove(agentID);
+//        }
 
         /// <summary>
         ///
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index 90fe43034b..7498cfe73e 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -672,13 +672,14 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                 sp.Reset();
             }
 
-            // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
-            if (sp.Scene.NeedSceneCacheClear(sp.UUID))
-            {
-                m_log.DebugFormat(
-                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region, profile cache removed",
-                    sp.UUID);
-            }
+            // Commented pending deletion since this method no longer appears to do anything at all
+//            // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
+//            if (sp.Scene.NeedSceneCacheClear(sp.UUID))
+//            {
+//                m_log.DebugFormat(
+//                    "[ENTITY TRANSFER MODULE]: User {0} is going to another region, profile cache removed",
+//                    sp.UUID);
+//            }
 
             m_entityTransferStateMachine.ResetFromTransit(sp.UUID);
         }
@@ -1237,14 +1238,14 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
 
                 AgentHasMovedAway(agent, false);
 
-                // the user may change their profile information in other region,
-                // so the userinfo in UserProfileCache is not reliable any more, delete it
-                // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
-                if (agent.Scene.NeedSceneCacheClear(agent.UUID))
-                {
-                    m_log.DebugFormat(
-                        "[ENTITY TRANSFER MODULE]: User {0} is going to another region", agent.UUID);
-                }
+//                // the user may change their profile information in other region,
+//                // so the userinfo in UserProfileCache is not reliable any more, delete it
+//                // REFACTORING PROBLEM. Well, not a problem, but this method is HORRIBLE!
+//                if (agent.Scene.NeedSceneCacheClear(agent.UUID))
+//                {
+//                    m_log.DebugFormat(
+//                        "[ENTITY TRANSFER MODULE]: User {0} is going to another region", agent.UUID);
+//                }
     
                 //m_log.Debug("AFTER CROSS");
                 //Scene.DumpChildrenSeeds(UUID);
diff --git a/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs b/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
index 8358bc0c64..401ff6cdef 100644
--- a/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Text.RegularExpressions;
 using Nini.Config;
 using OpenMetaverse;
 using OpenSim.Framework;
@@ -170,12 +171,42 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         /// <param name="hostID">UUID of the SceneObjectPart</param>
         /// <param name="channel">channel to listen on</param>
         /// <param name="name">name to filter on</param>
-        /// <param name="id">key to filter on (user given, could be totally faked)</param>
+        /// <param name="id">
+        /// key to filter on (user given, could be totally faked)
+        /// </param>
         /// <param name="msg">msg to filter on</param>
         /// <returns>number of the scripts handle</returns>
-        public int Listen(uint localID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg)
+        public int Listen(uint localID, UUID itemID, UUID hostID, int channel,
+                string name, UUID id, string msg)
         {
-            return m_listenerManager.AddListener(localID, itemID, hostID, channel, name, id, msg);
+            return m_listenerManager.AddListener(localID, itemID, hostID,
+                channel, name, id, msg);
+        }
+
+        /// <summary>
+        /// Create a listen event callback with the specified filters.
+        /// The parameters localID,itemID are needed to uniquely identify
+        /// the script during 'peek' time. Parameter hostID is needed to
+        /// determine the position of the script.
+        /// </summary>
+        /// <param name="localID">localID of the script engine</param>
+        /// <param name="itemID">UUID of the script engine</param>
+        /// <param name="hostID">UUID of the SceneObjectPart</param>
+        /// <param name="channel">channel to listen on</param>
+        /// <param name="name">name to filter on</param>
+        /// <param name="id">
+        /// key to filter on (user given, could be totally faked)
+        /// </param>
+        /// <param name="msg">msg to filter on</param>
+        /// <param name="regexBitfield">
+        /// Bitfield indicating which strings should be processed as regex.
+        /// </param>
+        /// <returns>number of the scripts handle</returns>
+        public int Listen(uint localID, UUID itemID, UUID hostID, int channel,
+                string name, UUID id, string msg, int regexBitfield)
+        {
+            return m_listenerManager.AddListener(localID, itemID, hostID,
+                    channel, name, id, msg, regexBitfield);
         }
 
         /// <summary>
@@ -465,15 +496,25 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             m_curlisteners = 0;
         }
 
-        public int AddListener(uint localID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg)
+        public int AddListener(uint localID, UUID itemID, UUID hostID,
+                int channel, string name, UUID id, string msg)
+        {
+            return AddListener(localID, itemID, hostID, channel, name, id,
+                    msg, 0);
+        }
+
+        public int AddListener(uint localID, UUID itemID, UUID hostID,
+                int channel, string name, UUID id, string msg,
+                int regexBitfield)
         {
             // do we already have a match on this particular filter event?
-            List<ListenerInfo> coll = GetListeners(itemID, channel, name, id, msg);
+            List<ListenerInfo> coll = GetListeners(itemID, channel, name, id,
+                    msg);
 
             if (coll.Count > 0)
             {
-                // special case, called with same filter settings, return same handle
-                // (2008-05-02, tested on 1.21.1 server, still holds)
+                // special case, called with same filter settings, return same
+                // handle (2008-05-02, tested on 1.21.1 server, still holds)
                 return coll[0].GetHandle();
             }
 
@@ -485,7 +526,9 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
 
                     if (newHandle > 0)
                     {
-                        ListenerInfo li = new ListenerInfo(newHandle, localID, itemID, hostID, channel, name, id, msg);
+                        ListenerInfo li = new ListenerInfo(newHandle, localID,
+                                itemID, hostID, channel, name, id, msg,
+                                regexBitfield);
 
                             List<ListenerInfo> listeners;
                             if (!m_listeners.TryGetValue(channel,out listeners))
@@ -626,6 +669,22 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             return -1;
         }
 
+        /// These are duplicated from ScriptBaseClass
+        /// http://opensimulator.org/mantis/view.php?id=6106#c21945
+        #region Constants for the bitfield parameter of osListenRegex
+
+        /// <summary>
+        /// process name parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_NAME = 0x1;
+
+        /// <summary>
+        /// process message parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_MESSAGE = 0x2;
+
+        #endregion
+
         // Theres probably a more clever and efficient way to
         // do this, maybe with regex.
         // PM2008: Ha, one could even be smart and define a specialized Enumerator.
@@ -651,7 +710,10 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     {
                         continue;
                     }
-                    if (li.GetName().Length > 0 && !li.GetName().Equals(name))
+                    if (li.GetName().Length > 0 && (
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_NAME) != OS_LISTEN_REGEX_NAME && !li.GetName().Equals(name)) ||
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_NAME) == OS_LISTEN_REGEX_NAME && !Regex.IsMatch(name, li.GetName()))
+                    ))
                     {
                         continue;
                     }
@@ -659,7 +721,10 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     {
                         continue;
                     }
-                    if (li.GetMessage().Length > 0 && !li.GetMessage().Equals(msg))
+                    if (li.GetMessage().Length > 0 && (
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_MESSAGE) != OS_LISTEN_REGEX_MESSAGE && !li.GetMessage().Equals(msg)) ||
+                        ((li.RegexBitfield & OS_LISTEN_REGEX_MESSAGE) == OS_LISTEN_REGEX_MESSAGE && !Regex.IsMatch(msg, li.GetMessage()))
+                    ))
                     {
                         continue;
                     }
@@ -692,10 +757,13 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         {
             int idx = 0;
             Object[] item = new Object[6];
+            int dataItemLength = 6;
 
             while (idx < data.Length)
             {
-                Array.Copy(data, idx, item, 0, 6);
+                dataItemLength = (idx + 7 == data.Length || (idx + 7 < data.Length && data[idx + 7] is bool)) ? 7 : 6;
+                item = new Object[dataItemLength];
+                Array.Copy(data, idx, item, 0, dataItemLength);
 
                 ListenerInfo info =
                         ListenerInfo.FromData(localID, itemID, hostID, item);
@@ -707,12 +775,12 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                     m_listeners[(int)item[2]].Add(info);
                 }
 
-                idx+=6;
+                idx+=dataItemLength;
             }
         }
     }
 
-    public class ListenerInfo: IWorldCommListenerInfo
+    public class ListenerInfo : IWorldCommListenerInfo
     {
         private bool m_active; // Listener is active or not
         private int m_handle; // Assigned handle of this listener
@@ -726,16 +794,29 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
 
         public ListenerInfo(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name, UUID id, string message)
         {
-            Initialise(handle, localID, ItemID, hostID, channel, name, id, message);
+            Initialise(handle, localID, ItemID, hostID, channel, name, id,
+                    message, 0);
+        }
+
+        public ListenerInfo(int handle, uint localID, UUID ItemID,
+                UUID hostID, int channel, string name, UUID id,
+                string message, int regexBitfield)
+        {
+            Initialise(handle, localID, ItemID, hostID, channel, name, id,
+                    message, regexBitfield);
         }
 
         public ListenerInfo(ListenerInfo li, string name, UUID id, string message)
         {
-            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message);
+            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message, 0);
         }
 
-        private void Initialise(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name,
-                                UUID id, string message)
+        public ListenerInfo(ListenerInfo li, string name, UUID id, string message, int regexBitfield)
+        {
+            Initialise(li.m_handle, li.m_localID, li.m_itemID, li.m_hostID, li.m_channel, name, id, message, regexBitfield);
+        }
+
+        private void Initialise(int handle, uint localID, UUID ItemID, UUID hostID, int channel, string name, UUID id, string message, int regexBitfield)
         {
             m_active = true;
             m_handle = handle;
@@ -746,11 +827,12 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             m_name = name;
             m_id = id;
             m_message = message;
+            RegexBitfield = regexBitfield;
         }
 
         public Object[] GetSerializationData()
         {
-            Object[] data = new Object[6];
+            Object[] data = new Object[7];
 
             data[0] = m_active;
             data[1] = m_handle;
@@ -758,16 +840,19 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
             data[3] = m_name;
             data[4] = m_id;
             data[5] = m_message;
+            data[6] = RegexBitfield;
 
             return data;
         }
 
         public static ListenerInfo FromData(uint localID, UUID ItemID, UUID hostID, Object[] data)
         {
-            ListenerInfo linfo = new ListenerInfo((int)data[1], localID,
-                    ItemID, hostID, (int)data[2], (string)data[3],
-                    (UUID)data[4], (string)data[5]);
-            linfo.m_active=(bool)data[0];
+            ListenerInfo linfo = new ListenerInfo((int)data[1], localID, ItemID, hostID, (int)data[2], (string)data[3], (UUID)data[4], (string)data[5]);
+            linfo.m_active = (bool)data[0];
+            if (data.Length >= 7)
+            {
+                linfo.RegexBitfield = (int)data[6];
+            }
 
             return linfo;
         }
@@ -826,5 +911,7 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         {
             return m_id;
         }
+
+        public int RegexBitfield { get; private set; }
     }
 }
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs
index a66ed88ad1..d8dace20c8 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveScenesGroup.cs
@@ -110,7 +110,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
                 lastX = (lastX == null) ? curLastX : (lastX > curLastX) ? lastX : curLastX;
             }
 
-            Rect = new Rectangle((int)firstX, (int)firstY, (int)(lastY - firstY + 1), (int)(lastX - firstX + 1));
+            Rect = new Rectangle((int)firstX, (int)firstY, (int)(lastX - firstX + 1), (int)(lastY - firstY + 1));
 
 
             // Calculate the subdirectory in which each region will be stored in the archive
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
index 2a87dc2a5f..970487a3d4 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiverModule.cs
@@ -32,6 +32,8 @@ using System.Reflection;
 using log4net;
 using NDesk.Options;
 using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 
@@ -117,7 +119,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 //
 //            foreach (string param in mainParams)
 //                m_log.DebugFormat("GOT PARAM [{0}]", param);
-            
+
             if (mainParams.Count > 2)
             {
                 DearchiveRegion(mainParams[2], mergeOar, skipAssets, Guid.Empty);
@@ -150,14 +152,16 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
             List<string> mainParams = ops.Parse(cmdparams);
 
+            string path;
             if (mainParams.Count > 2)
-            {
-                ArchiveRegion(mainParams[2], options);
-            }
+                path = mainParams[2];
             else
-            {
-                ArchiveRegion(DEFAULT_OAR_BACKUP_FILENAME, options);
-            }
+                path = DEFAULT_OAR_BACKUP_FILENAME;
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, path))
+                return;
+
+            ArchiveRegion(path, options);
         }
         
         public void ArchiveRegion(string savePath, Dictionary<string, object> options)
diff --git a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
index 87241e1559..b2c9bce7e5 100644
--- a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
@@ -27,10 +27,12 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
+using System.Xml;
 using log4net;
 using Mono.Addins;
 using NDesk.Options;
@@ -41,6 +43,7 @@ using OpenSim.Framework.Console;
 using OpenSim.Framework.Monitoring;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Scenes.Serialization;
 
 namespace OpenSim.Region.CoreModules.World.Objects.Commands
 {
@@ -96,9 +99,9 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 HandleDeleteObject);
 
             m_console.Commands.AddCommand(
-                "Objects", false, "delete object uuid",
-                "delete object uuid <UUID>",
-                "Delete a scene object by uuid",
+                "Objects", false, "delete object id",
+                "delete object id <UUID-or-localID>",
+                "Delete a scene object by uuid or localID",
                 HandleDeleteObject);
 
             m_console.Commands.AddCommand(
@@ -122,28 +125,18 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 "delete object pos",
                 "delete object pos <start-coord> to <end-coord>",
                 "Delete scene objects within the given area.",
-                "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
-                    + "If you don't care about the z component you can simply omit it.\n"
-                    + "If you don't care about the x or y components then you can leave them blank (though a comma is still required)\n"
-                    + "If you want to specify the maxmimum value of a component then you can use ~ instead of a number\n"
-                    + "If you want to specify the minimum value of a component then you can use -~ instead of a number\n"
-                    + "e.g.\n"
-                    + "delete object pos 20,20,20 to 40,40,40\n"
-                    + "delete object pos 20,20 to 40,40\n"
-                    + "delete object pos ,20,20 to ,40,40\n"
-                    + "delete object pos ,,30 to ,,~\n"
-                    + "delete object pos ,,-~ to ,,30",
+                ConsoleUtil.CoordHelp,
                 HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
-                "show object uuid",
-                "show object uuid [--full] <UUID>",
-                "Show details of a scene object with the given UUID",
+                "show object id",
+                "show object id [--full] <UUID-or-localID>",
+                "Show details of a scene object with the given UUID or localID",
                 "The --full option will print out information on all the parts of the object.\n"
                     + "For yet more detailed part information, use the \"show part\" commands.",
-                HandleShowObjectByUuid);
+                HandleShowObjectById);
 
             m_console.Commands.AddCommand(
                 "Objects",
@@ -164,25 +157,15 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 "Show details of scene objects within the given area.",
                 "The --full option will print out information on all the parts of the object.\n"
                     + "For yet more detailed part information, use the \"show part\" commands.\n"
-                    + "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
-                    + "If you don't care about the z component you can simply omit it.\n"
-                    + "If you don't care about the x or y components then you can leave them blank (though a comma is still required)\n"
-                    + "If you want to specify the maxmimum value of a component then you can use ~ instead of a number\n"
-                    + "If you want to specify the minimum value of a component then you can use -~ instead of a number\n"
-                    + "e.g.\n"
-                    + "show object pos 20,20,20 to 40,40,40\n"
-                    + "show object pos 20,20 to 40,40\n"
-                    + "show object pos ,20,20 to ,40,40\n"
-                    + "show object pos ,,30 to ,,~\n"
-                    + "show object pos ,,-~ to ,,30",
+                    + ConsoleUtil.CoordHelp,
                 HandleShowObjectByPos);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
-                "show part uuid",
-                "show part uuid <UUID>",
-                "Show details of a scene object parts with the given UUID", HandleShowPartByUuid);
+                "show part id",
+                "show part id <UUID-or-localID>",
+                "Show details of a scene object part with the given UUID or localID", HandleShowPartById);
 
             m_console.Commands.AddCommand(
                 "Objects",
@@ -190,7 +173,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 "show part name",
                 "show part name [--regex] <name>",
                 "Show details of scene object parts with the given name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "If --regex is specified then the name is treated as a regular expression",
                 HandleShowPartByName);
 
             m_console.Commands.AddCommand(
@@ -199,18 +182,19 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 "show part pos",
                 "show part pos <start-coord> to <end-coord>",
                 "Show details of scene object parts within the given area.",
-                "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
-                    + "If you don't care about the z component you can simply omit it.\n"
-                    + "If you don't care about the x or y components then you can leave them blank (though a comma is still required)\n"
-                    + "If you want to specify the maxmimum value of a component then you can use ~ instead of a number\n"
-                    + "If you want to specify the minimum value of a component then you can use -~ instead of a number\n"
-                    + "e.g.\n"
-                    + "show object pos 20,20,20 to 40,40,40\n"
-                    + "show object pos 20,20 to 40,40\n"
-                    + "show object pos ,20,20 to ,40,40\n"
-                    + "show object pos ,,30 to ,,~\n"
-                    + "show object pos ,,-~ to ,,30",
+                ConsoleUtil.CoordHelp,
                 HandleShowPartByPos);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "dump object id",
+                "dump object id <UUID-or-localID>",
+                "Dump the formatted serialization of the given object to the file <UUID>.xml",
+                "e.g. dump object uuid c1ed6809-cc24-4061-a4c2-93082a2d1f1d will dump serialization to c1ed6809-cc24-4061-a4c2-93082a2d1f1d.xml\n"
+                    + "To locate the UUID or localID in the first place, you need to use the other show object commands.\n"
+                    + "If a local ID is given then the filename used is still that for the UUID",
+                HandleDumpObjectById);
         }
 
         public void RemoveRegion(Scene scene)
@@ -265,7 +249,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_console.OutputFormat(sb.ToString());
         }
 
-        private void HandleShowObjectByUuid(string module, string[] cmdparams)
+        private void HandleShowObjectById(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
@@ -281,14 +265,17 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 return;
             }
 
-            UUID objectUuid;
-            if (!UUID.TryParse(mainParams[3], out objectUuid))
-            {
-                m_console.OutputFormat("{0} is not a valid uuid", mainParams[3]);
+            UUID uuid;
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, mainParams[3], out uuid, out localId))
                 return;
-            }
 
-            SceneObjectGroup so = m_scene.GetSceneObjectGroup(objectUuid);
+            SceneObjectGroup so;
+
+            if (localId != ConsoleUtil.LocalIdNotFound)
+                so = m_scene.GetSceneObjectGroup(localId);
+            else
+                so = m_scene.GetSceneObjectGroup(uuid);
 
             if (so == null)
             {
@@ -365,7 +352,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             OutputSogsToConsole(searchPredicate, showFull);
         }
 
-        private void HandleShowPartByUuid(string module, string[] cmdparams)
+        private void HandleShowPartById(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
@@ -378,18 +365,20 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
             if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show part uuid [--full] <uuid>");
+                m_console.OutputFormat("Usage: show part id [--full] <UUID-or-localID>");
                 return;
             }
 
             UUID objectUuid;
-            if (!UUID.TryParse(mainParams[3], out objectUuid))
-            {
-                m_console.OutputFormat("{0} is not a valid uuid", mainParams[3]);
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, mainParams[3], out objectUuid, out localId))
                 return;
-            }
 
-            SceneObjectPart sop = m_scene.GetSceneObjectPart(objectUuid);
+            SceneObjectPart sop;
+            if (localId == ConsoleUtil.LocalIdNotFound)
+                sop = m_scene.GetSceneObjectPart(objectUuid);
+            else
+                sop = m_scene.GetSceneObjectPart(localId);
 
             if (sop == null)
             {
@@ -477,6 +466,51 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             OutputSopsToConsole(searchPredicate, true);
         }
 
+        private void HandleDumpObjectById(string module, string[] cmdparams)
+        {
+            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
+                return;
+
+            if (cmdparams.Length < 4)
+            {
+                m_console.OutputFormat("Usage: dump object id <UUID-or-localID>");
+                return;
+            }
+
+            UUID objectUuid;
+            uint localId;
+            if (!ConsoleUtil.TryParseConsoleId(m_console, cmdparams[3], out objectUuid, out localId))
+                return;
+
+            SceneObjectGroup so;
+            if (localId == ConsoleUtil.LocalIdNotFound)
+                so = m_scene.GetSceneObjectGroup(objectUuid);
+            else
+                so = m_scene.GetSceneObjectGroup(localId);
+
+            if (so == null)
+            {
+//                m_console.OutputFormat("No part found with uuid {0}", objectUuid);
+                return;
+            }
+
+            // In case we found it via local ID.
+            objectUuid = so.UUID;
+
+            string fileName = string.Format("{0}.xml", objectUuid);
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(m_console, fileName))
+                return;
+            
+            using (XmlTextWriter xtw = new XmlTextWriter(fileName, Encoding.UTF8))
+            {
+                xtw.Formatting = Formatting.Indented;
+                SceneObjectSerializer.ToOriginalXmlFormat(so, xtw, true);
+            }
+            
+            m_console.OutputFormat("Object dumped to file {0}", fileName);
+        }
+
         /// <summary>
         /// Append a scene object report to an input StringBuilder
         /// </summary>
@@ -641,19 +675,24 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
         
                     break;
         
-                case "uuid":
-                    if (!UUID.TryParse(o, out match))
+                case "id":
+                    UUID uuid;
+                    uint localId;
+                    if (!ConsoleUtil.TryParseConsoleId(m_console, o, out uuid, out localId))
                         return;
 
                     requireConfirmation = false;
                     deletes = new List<SceneObjectGroup>();
-        
-                    m_scene.ForEachSOG(delegate (SceneObjectGroup g)
-                    {
-                        if (g.UUID == match && !g.IsAttachment)
-                            deletes.Add(g);
-                    });
-        
+
+                    SceneObjectGroup so;
+                    if (localId == ConsoleUtil.LocalIdNotFound)
+                        so = m_scene.GetSceneObjectGroup(uuid);
+                    else
+                        so = m_scene.GetSceneObjectGroup(localId);
+
+                    if (!so.IsAttachment)
+                       deletes.Add(so);
+
         //                if (deletes.Count == 0)
         //                    m_console.OutputFormat("No objects were found with uuid {0}", match);
         
diff --git a/OpenSim/Region/Framework/Interfaces/IWorldComm.cs b/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
index 4e74781b9b..d76a0d755d 100644
--- a/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
+++ b/OpenSim/Region/Framework/Interfaces/IWorldComm.cs
@@ -45,6 +45,13 @@ namespace OpenSim.Region.Framework.Interfaces
         void Deactivate();
         void Activate();
         UUID GetID();
+
+        /// <summary>
+        /// Bitfield indicating which strings should be processed as regex.
+        /// 1 corresponds to IWorldCommListenerInfo::GetName()
+        /// 2 corresponds to IWorldCommListenerInfo::GetMessage()
+        /// </summary>
+        int RegexBitfield { get; }
     }
 
     public interface IWorldComm
@@ -60,7 +67,7 @@ namespace OpenSim.Region.Framework.Interfaces
         /// the script during 'peek' time. Parameter hostID is needed to
         /// determine the position of the script.
         /// </summary>
-        /// <param name="localID">localID of the script engine</param>
+        /// <param name="LocalID">localID of the script engine</param>
         /// <param name="itemID">UUID of the script engine</param>
         /// <param name="hostID">UUID of the SceneObjectPart</param>
         /// <param name="channel">channel to listen on</param>
@@ -70,6 +77,23 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <returns>number of the scripts handle</returns>
         int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg);
 
+         /// <summary>
+        /// Create a listen event callback with the specified filters.
+        /// The parameters localID,itemID are needed to uniquely identify
+        /// the script during 'peek' time. Parameter hostID is needed to
+        /// determine the position of the script.
+        /// </summary>
+        /// <param name="LocalID">localID of the script engine</param>
+        /// <param name="itemID">UUID of the script engine</param>
+        /// <param name="hostID">UUID of the SceneObjectPart</param>
+        /// <param name="channel">channel to listen on</param>
+        /// <param name="name">name to filter on</param>
+        /// <param name="id">key to filter on (user given, could be totally faked)</param>
+        /// <param name="msg">msg to filter on</param>
+        /// <param name="regexBitfield">Bitfield indicating which strings should be processed as regex.</param>
+        /// <returns>number of the scripts handle</returns>
+        int Listen(uint LocalID, UUID itemID, UUID hostID, int channel, string name, UUID id, string msg, int regexBitfield);
+
         /// <summary>
         /// This method scans over the objects which registered an interest in listen callbacks.
         /// For everyone it finds, it checks if it fits the given filter. If it does,  then
diff --git a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
index ad421eeedb..3d8e8be795 100644
--- a/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
+++ b/OpenSim/Region/Framework/Scenes/Animation/AnimationSet.cs
@@ -41,12 +41,13 @@ namespace OpenSim.Region.Framework.Scenes.Animation
     {
 //        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private OpenSim.Framework.Animation m_implicitDefaultAnimation = new OpenSim.Framework.Animation();
         private OpenSim.Framework.Animation m_defaultAnimation = new OpenSim.Framework.Animation();
         private List<OpenSim.Framework.Animation> m_animations = new List<OpenSim.Framework.Animation>();
 
-        public OpenSim.Framework.Animation DefaultAnimation 
+        public OpenSim.Framework.Animation ImplicitDefaultAnimation 
         {
-            get { return m_defaultAnimation; } 
+            get { return m_implicitDefaultAnimation; } 
         }
         
         public AnimationSet()
@@ -119,6 +120,7 @@ namespace OpenSim.Region.Framework.Scenes.Animation
             if (m_defaultAnimation.AnimID != animID)
             {
                 m_defaultAnimation = new OpenSim.Framework.Animation(animID, sequenceNum, objectID);
+                m_implicitDefaultAnimation = m_defaultAnimation;
                 return true;
             }
             return false;
diff --git a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
index 6e53951003..df432718d4 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.PacketHandlers.cs
@@ -38,7 +38,18 @@ namespace OpenSim.Region.Framework.Scenes
 {
     public partial class Scene
     {
-
+        /// <summary>
+        /// Send chat to listeners.
+        /// </summary>
+        /// <param name='message'></param>
+        /// <param name='type'>/param>
+        /// <param name='channel'></param>
+        /// <param name='fromPos'></param>
+        /// <param name='fromName'></param>
+        /// <param name='fromID'></param>
+        /// <param name='targetID'></param>
+        /// <param name='fromAgent'></param>
+        /// <param name='broadcast'></param>
         protected void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
                                UUID fromID, UUID targetID, bool fromAgent, bool broadcast)
         {
@@ -66,6 +77,10 @@ namespace OpenSim.Region.Framework.Scenes
             args.From = fromName;
             args.TargetUUID = targetID;
 
+//            m_log.DebugFormat(
+//                "[SCENE]: Sending message {0} on channel {1}, type {2} from {3}, broadcast {4}",
+//                args.Message.Replace("\n", "\\n"), args.Channel, args.Type, fromName, broadcast);
+
             if (broadcast)
                 EventManager.TriggerOnChatBroadcast(this, args);
             else
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 5f45529ca8..9c61fe7da8 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1267,6 +1267,12 @@ namespace OpenSim.Region.Framework.Scenes
         // This is the method that shuts down the scene.
         public override void Close()
         {
+            if (m_shuttingDown)
+            {
+                m_log.WarnFormat("[SCENE]: Ignoring close request because already closing {0}", Name);
+                return;
+            }
+
             m_log.InfoFormat("[SCENE]: Closing down the single simulator: {0}", RegionInfo.RegionName);
 
             StatsReporter.Close();
@@ -1310,6 +1316,14 @@ namespace OpenSim.Region.Framework.Scenes
 
             m_sceneGraph.Close();
 
+            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
+                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
+
+            base.Close();
+
+            // XEngine currently listens to the EventManager.OnShutdown event to trigger script stop and persistence.
+            // Therefore. we must dispose of the PhysicsScene after this to prevent a window where script code can
+            // attempt to reference a null or disposed physics scene.
             if (PhysicsScene != null)
             {
                 PhysicsScene phys = PhysicsScene;
@@ -1318,12 +1332,6 @@ namespace OpenSim.Region.Framework.Scenes
                 phys.Dispose();
                 phys = null;
             }
-
-            if (!GridService.DeregisterRegion(RegionInfo.RegionID))
-                m_log.WarnFormat("[SCENE]: Deregister from grid failed for region {0}", Name);
-
-            // call the base class Close method.
-            base.Close();
         }
 
         /// <summary>
@@ -3427,9 +3435,10 @@ namespace OpenSim.Region.Framework.Scenes
                     if (closeChildAgents && CapsModule != null)
                         CapsModule.RemoveCaps(agentID);
     
-                    // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
-                    // this method is doing is HORRIBLE!!!
-                    avatar.Scene.NeedSceneCacheClear(avatar.UUID);
+//                    // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
+//                    // this method is doing is HORRIBLE!!!
+                    // Commented pending deletion since this method no longer appears to do anything at all
+//                    avatar.Scene.NeedSceneCacheClear(avatar.UUID);
     
                     if (closeChildAgents && !isChildAgent)
                     {
@@ -4688,12 +4697,23 @@ namespace OpenSim.Region.Framework.Scenes
         /// Get a group via its UUID
         /// </summary>
         /// <param name="fullID"></param>
-        /// <returns>null if no group with that name exists</returns>
+        /// <returns>null if no group with that id exists</returns>
         public SceneObjectGroup GetSceneObjectGroup(UUID fullID)
         {
             return m_sceneGraph.GetSceneObjectGroup(fullID);
         }
 
+        /// <summary>
+        /// Get a group via its local ID
+        /// </summary>
+        /// <remarks>This will only return a group if the local ID matches a root part</remarks>
+        /// <param name="localID"></param>
+        /// <returns>null if no group with that id exists</returns>
+        public SceneObjectGroup GetSceneObjectGroup(uint localID)
+        {
+            return m_sceneGraph.GetSceneObjectGroup(localID);
+        }
+
         /// <summary>
         /// Get a group by name from the scene (will return the first
         /// found, if there are more than one prim with the same name)
@@ -4854,14 +4874,15 @@ namespace OpenSim.Region.Framework.Scenes
                 client.SendRegionHandle(regionID, handle);
         }
 
-        public bool NeedSceneCacheClear(UUID agentID)
-        {
-            IInventoryTransferModule inv = RequestModuleInterface<IInventoryTransferModule>();
-            if (inv == null)
-                return true;
-
-            return inv.NeedSceneCacheClear(agentID, this);
-        }
+// Commented pending deletion since this method no longer appears to do anything at all
+//        public bool NeedSceneCacheClear(UUID agentID)
+//        {
+//            IInventoryTransferModule inv = RequestModuleInterface<IInventoryTransferModule>();
+//            if (inv == null)
+//                return true;
+//
+//            return inv.NeedSceneCacheClear(agentID, this);
+//        }
 
         public void CleanTempObjects()
         {
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index 209a770396..a4383fd23b 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -982,6 +982,30 @@ namespace OpenSim.Region.Framework.Scenes
             return null;
         }
 
+        /// <summary>
+        /// Get a group in the scene
+        /// </summary>
+        /// <remarks>
+        /// This will only return a group if the local ID matches the root part, not other parts.
+        /// </remarks>
+        /// <param name="localID">Local id of the root part of the group</param>
+        /// <returns>null if no such group was found</returns>
+        protected internal SceneObjectGroup GetSceneObjectGroup(uint localID)
+        {
+            lock (SceneObjectGroupsByLocalPartID)
+            {
+                if (SceneObjectGroupsByLocalPartID.ContainsKey(localID))
+                {
+                    SceneObjectGroup so = SceneObjectGroupsByLocalPartID[localID];
+
+                    if (so.LocalId == localID)
+                        return so;
+                }
+            }
+
+            return null;
+        }
+
         /// <summary>
         /// Get a group by name from the scene (will return the first
         /// found, if there are more than one prim with the same name)
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 1222ac6bcf..b6d0a3b661 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -68,7 +68,7 @@ namespace OpenSim.Region.Framework.Scenes
         public ScriptControlled eventControls;
     }
 
-    public delegate void SendCourseLocationsMethod(UUID scene, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs);
+    public delegate void SendCoarseLocationsMethod(UUID scene, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs);
 
     public class ScenePresence : EntityBase, IScenePresence
     {
@@ -186,7 +186,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public bool SitGround { get; private set; }
 
-        private SendCourseLocationsMethod m_sendCourseLocationsMethod;
+        private SendCoarseLocationsMethod m_sendCoarseLocationsMethod;
 
         //private Vector3 m_requestedSitOffset = new Vector3();
 
@@ -695,7 +695,7 @@ namespace OpenSim.Region.Framework.Scenes
             AttachmentsSyncLock = new Object();
             AllowMovement = true;
             IsChildAgent = true;
-            m_sendCourseLocationsMethod = SendCoarseLocationsDefault;
+            m_sendCoarseLocationsMethod = SendCoarseLocationsDefault;
             Animator = new ScenePresenceAnimator(this);
             PresenceType = type;
             DrawDistance = world.DefaultDrawDistance;
@@ -2432,17 +2432,17 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void SendCoarseLocations(List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
         {
-            SendCourseLocationsMethod d = m_sendCourseLocationsMethod;
+            SendCoarseLocationsMethod d = m_sendCoarseLocationsMethod;
             if (d != null)
             {
                 d.Invoke(m_scene.RegionInfo.originRegionID, this, coarseLocations, avatarUUIDs);
             }
         }
 
-        public void SetSendCourseLocationMethod(SendCourseLocationsMethod d)
+        public void SetSendCoarseLocationMethod(SendCoarseLocationsMethod d)
         {
             if (d != null)
-                m_sendCourseLocationsMethod = d;
+                m_sendCoarseLocationsMethod = d;
         }
 
         public void SendCoarseLocationsDefault(UUID sceneId, ScenePresence p, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
@@ -2646,7 +2646,7 @@ namespace OpenSim.Region.Framework.Scenes
         #region Significant Movement Method
 
         /// <summary>
-        /// This checks for a significant movement and sends a courselocationchange update
+        /// This checks for a significant movement and sends a coarselocationchange update
         /// </summary>
         protected void CheckForSignificantMovement()
         {
diff --git a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
index 2addb5bab8..b9d615e804 100644
--- a/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
+++ b/OpenSim/Region/Framework/Scenes/SimStatsReporter.cs
@@ -245,11 +245,13 @@ namespace OpenSim.Region.Framework.Scenes
                 = new Stat(
                     "SlowFrames",
                     "Slow Frames",
+                    "Number of frames where frame time has been significantly longer than the desired frame time.",
                     " frames",
                     "scene",
                     m_scene.Name,
-                    StatVerbosity.Info,
-                    "Number of frames where frame time has been significantly longer than the desired frame time.");
+                    StatType.Push,
+                    null,
+                    StatVerbosity.Info);
 
             StatsManager.RegisterStat(SlowFramesStat);
         }
diff --git a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
index d722a0990a..ac3da1e2cc 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/SceneTests.cs
@@ -65,5 +65,22 @@ namespace OpenSim.Region.Framework.Scenes.Tests
             
             Assert.That(scene.Frame, Is.EqualTo(1));
         }
+
+        [Test]
+        public void TestShutdownScene()
+        {
+            TestHelpers.InMethod();
+
+            Scene scene = new SceneHelpers().SetupScene();
+            scene.Close();
+
+            Assert.That(scene.ShuttingDown, Is.True);
+            Assert.That(scene.Active, Is.False);
+
+            // Trying to update a shutdown scene should result in no update
+            scene.Update(1);
+
+            Assert.That(scene.Frame, Is.EqualTo(0));
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
index e93bd7cb1d..781539acc1 100644
--- a/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
+++ b/OpenSim/Region/OptionalModules/Agent/InternetRelayClientView/Server/IRCClientView.cs
@@ -954,7 +954,8 @@ namespace OpenSim.Region.OptionalModules.Agent.InternetRelayClientView.Server
             
         }
 
-        public void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, byte source, byte audible)
+        public void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName, UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
             if (audible > 0 && message.Length > 0)
                 IRC_SendChannelPrivmsg(fromName, message);
diff --git a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
index 41ec14f224..7639c6ce45 100644
--- a/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
+++ b/OpenSim/Region/OptionalModules/Asset/AssetInfoModule.cs
@@ -127,6 +127,9 @@ namespace OpenSim.Region.OptionalModules.Asset
             }
             
             string fileName = rawAssetId;
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, fileName))
+                return;
             
             using (FileStream fs = new FileStream(fileName, FileMode.CreateNew))
             {
diff --git a/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs b/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
index e22618dff3..5c3be29e9a 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Concierge/ConciergeModule.cs
@@ -546,8 +546,9 @@ namespace OpenSim.Region.OptionalModules.Avatar.Concierge
             c.SenderUUID = UUID.Zero;
             c.Scene = agent.Scene;
 
-            agent.ControllingClient.SendChatMessage(msg, (byte) ChatTypeEnum.Say, PosOfGod, m_whoami, UUID.Zero, 
-                                                    (byte)ChatSourceType.Object, (byte)ChatAudibleLevel.Fully);
+            agent.ControllingClient.SendChatMessage(
+                msg, (byte) ChatTypeEnum.Say, PosOfGod, m_whoami, UUID.Zero, UUID.Zero,
+                 (byte)ChatSourceType.Object, (byte)ChatAudibleLevel.Fully);
         }
 
         private static void checkStringParameters(XmlRpcRequest request, string[] param)
diff --git a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
index ffd4222935..5ea2bcd908 100644
--- a/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
+++ b/OpenSim/Region/OptionalModules/World/NPC/NPCAvatar.cs
@@ -603,13 +603,15 @@ namespace OpenSim.Region.OptionalModules.World.NPC
         {
         }
 
-        public virtual void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
+        public virtual void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
         }
 
-        public virtual void SendChatMessage(byte[] message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
+        public virtual void SendChatMessage(
+            byte[] message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
         }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 623ac8ff16..a041ba8e0a 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -105,7 +105,7 @@ public class BSCharacter : BSPhysObject
         shapeData.Position = _position;
         shapeData.Rotation = _orientation;
         shapeData.Velocity = _velocity;
-        shapeData.Size = Scale;
+        shapeData.Size = Scale; // capsule is a native shape but scale is not just <1,1,1>
         shapeData.Scale = Scale;
         shapeData.Mass = _mass;
         shapeData.Buoyancy = _buoyancy;
@@ -144,7 +144,9 @@ public class BSCharacter : BSPhysObject
         ForcePosition = _position;
         // Set the velocity and compute the proper friction
         ForceVelocity = _velocity;
+
         BulletSimAPI.SetRestitution2(BSBody.ptr, PhysicsScene.Params.avatarRestitution);
+        BulletSimAPI.SetMargin2(BSShape.ptr, PhysicsScene.Params.collisionMargin);
         BulletSimAPI.SetLocalScaling2(BSShape.ptr, Scale);
         BulletSimAPI.SetContactProcessingThreshold2(BSBody.ptr, PhysicsScene.Params.contactProcessingThreshold);
         if (PhysicsScene.Params.ccdMotionThreshold > 0f)
@@ -156,16 +158,20 @@ public class BSCharacter : BSPhysObject
         OMV.Vector3 localInertia = BulletSimAPI.CalculateLocalInertia2(BSShape.ptr, MassRaw);
         BulletSimAPI.SetMassProps2(BSBody.ptr, MassRaw, localInertia);
 
+        // Make so capsule does not fall over
+        BulletSimAPI.SetAngularFactorV2(BSBody.ptr, OMV.Vector3.Zero);
+
         BulletSimAPI.AddToCollisionFlags2(BSBody.ptr, CollisionFlags.CF_CHARACTER_OBJECT);
 
         BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, BSBody.ptr);
 
-        BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
+        // BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
+        BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.DISABLE_DEACTIVATION);
         BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, BSBody.ptr);
 
         // Do this after the object has been added to the world
         BulletSimAPI.SetCollisionFilterMask2(BSBody.ptr,
-                        (uint)CollisionFilterGroups.AvatarFilter, 
+                        (uint)CollisionFilterGroups.AvatarFilter,
                         (uint)CollisionFilterGroups.AvatarMask);
     }
 
@@ -175,11 +181,13 @@ public class BSCharacter : BSPhysObject
     }
     // No one calls this method so I don't know what it could possibly mean
     public override bool Stopped { get { return false; } }
+
     public override OMV.Vector3 Size {
         get
         {
             // Avatar capsule size is kept in the scale parameter.
-            return _size;
+            // return _size;
+            return new OMV.Vector3(Scale.X * 2f, Scale.Y * 2f, Scale.Z);
         }
 
         set {
@@ -199,7 +207,9 @@ public class BSCharacter : BSPhysObject
 
         }
     }
+
     public override OMV.Vector3 Scale { get; set; }
+
     public override PrimitiveBaseShape Shape
     {
         set { BaseShape = value; }
@@ -264,12 +274,12 @@ public class BSCharacter : BSPhysObject
 
 
     // Check that the current position is sane and, if not, modify the position to make it so.
-    // Check for being below terrain and being out of bounds.
+    // Check for being below terrain or on water.
     // Returns 'true' of the position was made sane by some action.
     private bool PositionSanityCheck()
     {
         bool ret = false;
-      
+
         // If below the ground, move the avatar up
         float terrainHeight = PhysicsScene.TerrainManager.GetTerrainHeightAtXYZ(_position);
         if (Position.Z < terrainHeight)
@@ -335,7 +345,7 @@ public class BSCharacter : BSPhysObject
     }
 
     // Avatars don't do vehicles
-    public override int VehicleType { get { return 0; } set { return; } }
+    public override int VehicleType { get { return (int)Vehicle.TYPE_NONE; } set { return; } }
     public override void VehicleFloatParam(int param, float value) { }
     public override void VehicleVectorParam(int param, OMV.Vector3 value) {}
     public override void VehicleRotationParam(int param, OMV.Quaternion rotation) { }
@@ -413,7 +423,7 @@ public class BSCharacter : BSPhysObject
             });
         }
     }
-    // Go directly to Bullet to get/set the value. 
+    // Go directly to Bullet to get/set the value.
     public override OMV.Quaternion ForceOrientation
     {
         get
@@ -478,7 +488,7 @@ public class BSCharacter : BSPhysObject
         set { _collidingObj = value; }
     }
     public override bool FloatOnWater {
-        set { 
+        set {
             _floatOnWater = value;
             PhysicsScene.TaintedObject("BSCharacter.setFloatOnWater", delegate()
             {
@@ -588,9 +598,8 @@ public class BSCharacter : BSPhysObject
         newScale.X = PhysicsScene.Params.avatarCapsuleRadius;
         newScale.Y = PhysicsScene.Params.avatarCapsuleRadius;
 
-        // From the total height, remote the capsule half spheres that are at each end 
-        newScale.Z = (size.Z * 2f) - Math.Min(newScale.X, newScale.Y);
-        // newScale.Z = (size.Z * 2f);
+        // From the total height, remove the capsule half spheres that are at each end
+        newScale.Z = size.Z- (newScale.X + newScale.Y);
         Scale = newScale;
     }
 
@@ -636,7 +645,7 @@ public class BSCharacter : BSPhysObject
             BulletSimAPI.SetLinearVelocity2(BSBody.ptr, avVel);
         }
 
-        // Tell the linkset about this
+        // Tell the linkset about value changes
         Linkset.UpdateProperties(this);
 
         // Avatars don't report their changes the usual way. Changes are checked for in the heartbeat loop.
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
index a20be3a285..f017cdd669 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
@@ -34,6 +34,8 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
 public abstract class BSConstraint : IDisposable
 {
+    private static string LogHeader = "[BULLETSIM CONSTRAINT]";
+
     protected BulletSim m_world;
     protected BulletBody m_body1;
     protected BulletBody m_body2;
@@ -53,7 +55,7 @@ public abstract class BSConstraint : IDisposable
             {
                 bool success = BulletSimAPI.DestroyConstraint2(m_world.ptr, m_constraint.ptr);
                 m_world.physicsScene.DetailLog("{0},BSConstraint.Dispose,taint,id1={1},body1={2},id2={3},body2={4},success={5}",
-                                    BSScene.DetailLogZero, 
+                                    BSScene.DetailLogZero,
                                     m_body1.ID, m_body1.ptr.ToString("X"),
                                     m_body2.ID, m_body2.ptr.ToString("X"),
                                     success);
@@ -124,7 +126,7 @@ public abstract class BSConstraint : IDisposable
             }
             else
             {
-                m_world.physicsScene.Logger.ErrorFormat("[BULLETSIM CONSTRAINT] CalculateTransforms failed. A={0}, B={1}", Body1.ID, Body2.ID);
+                m_world.physicsScene.Logger.ErrorFormat("{0} CalculateTransforms failed. A={1}, B={2}", LogHeader, Body1.ID, Body2.ID);
             }
         }
         return ret;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
index 56342b88f8..117c8787d1 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
@@ -23,7 +23,7 @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+ *
 
 /* RA: June 14, 2011. Copied from ODEDynamics.cs and converted to
  * call the BulletSim system.
@@ -352,7 +352,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                     // m_bankingMix = 1;
                     // m_bankingTimescale = 1;
                     // m_referenceFrame = Quaternion.Identity;
-                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP 
+                    m_flags |= (VehicleFlag.NO_DEFLECTION_UP
                                 | VehicleFlag.LIMIT_ROLL_ONLY
                                 | VehicleFlag.LIMIT_MOTOR_UP);
                     m_flags &= ~(VehicleFlag.HOVER_WATER_ONLY | VehicleFlag.HOVER_TERRAIN_ONLY | VehicleFlag.HOVER_GLOBAL_HEIGHT);
@@ -382,7 +382,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                     // m_bankingTimescale = 1;
                     // m_referenceFrame = Quaternion.Identity;
                     m_flags &= ~(VehicleFlag.HOVER_TERRAIN_ONLY
-                                    | VehicleFlag.HOVER_GLOBAL_HEIGHT 
+                                    | VehicleFlag.HOVER_GLOBAL_HEIGHT
                                     | VehicleFlag.LIMIT_ROLL_ONLY
                                     | VehicleFlag.HOVER_UP_ONLY);
                     m_flags |= (VehicleFlag.NO_DEFLECTION_UP
@@ -458,14 +458,15 @@ namespace OpenSim.Region.Physics.BulletSPlugin
         // Do any updating needed for a vehicle
         public void Refresh()
         {
-            if (!IsActive) 
+            if (!IsActive)
                 return;
 
             // Set the prim's inertia to zero. The vehicle code handles that and this
             //    removes the motion and torque actions introduced by Bullet.
             Vector3 inertia = Vector3.Zero;
-            BulletSimAPI.SetMassProps2(Prim.BSBody.ptr, Prim.MassRaw, inertia);
-            BulletSimAPI.UpdateInertiaTensor2(Prim.BSBody.ptr);
+            // comment out for DEBUG test
+            // BulletSimAPI.SetMassProps2(Prim.BSBody.ptr, Prim.MassRaw, inertia);
+            // BulletSimAPI.UpdateInertiaTensor2(Prim.BSBody.ptr);
         }
 
         // One step of the vehicle properties for the next 'pTimestep' seconds.
@@ -791,7 +792,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 
             // Sum velocities
             m_lastAngularVelocity = m_angularMotorVelocity + vertattr; // + bank + deflection
-         
+
             if ((m_flags & (VehicleFlag.NO_DEFLECTION_UP)) != 0)
             {
                 m_lastAngularVelocity.X = 0;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
index 43b12623cc..c984824278 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
@@ -32,10 +32,27 @@ using OMV = OpenMetaverse;
 
 namespace OpenSim.Region.Physics.BulletSPlugin
 {
-public class BSLinkset
+public abstract class BSLinkset
 {
     // private static string LogHeader = "[BULLETSIM LINKSET]";
 
+    // Create the correct type of linkset for this child
+    public static BSLinkset Factory(BSScene physScene, BSPhysObject parent)
+    {
+        BSLinkset ret = null;
+        /*
+        if (parent.IsPhysical)
+            ret = new BSLinksetConstraints(physScene, parent);
+        else
+            ret = new BSLinksetManual(physScene, parent);
+         */
+
+        // at the moment, there is only one
+        ret = new BSLinksetConstraints(physScene, parent);
+
+        return ret;
+    }
+
     public BSPhysObject LinksetRoot { get; protected set; }
 
     public BSScene PhysicsScene { get; private set; }
@@ -52,16 +69,16 @@ public class BSLinkset
     //    the physical 'taint' children separately.
     // After taint processing and before the simulation step, these
     //    two lists must be the same.
-    private HashSet<BSPhysObject> m_children;
-    private HashSet<BSPhysObject> m_taintChildren;
+    protected HashSet<BSPhysObject> m_children;
+    protected HashSet<BSPhysObject> m_taintChildren;
 
     // We lock the diddling of linkset classes to prevent any badness.
     // This locks the modification of the instances of this class. Changes
     //    to the physical representation is done via the tainting mechenism.
-    private object m_linksetActivityLock = new Object();
+    protected object m_linksetActivityLock = new Object();
 
     // We keep the prim's mass in the linkset structure since it could be dependent on other prims
-    private float m_mass;
+    protected float m_mass;
     public float LinksetMass
     {
         get
@@ -81,7 +98,7 @@ public class BSLinkset
         get { return ComputeLinksetGeometricCenter(); }
     }
 
-    public BSLinkset(BSScene scene, BSPhysObject parent)
+    protected void Initialize(BSScene scene, BSPhysObject parent)
     {
         // A simple linkset of one (no children)
         LinksetID = m_nextLinksetID++;
@@ -128,7 +145,7 @@ public class BSLinkset
         }
 
         // The child is down to a linkset of just itself
-        return new BSLinkset(PhysicsScene, child);
+        return BSLinkset.Factory(PhysicsScene, child);
     }
 
     // Return 'true' if the passed object is the root object of this linkset
@@ -148,6 +165,9 @@ public class BSLinkset
         bool ret = false;
         lock (m_linksetActivityLock)
         {
+            if (m_children.Contains(child))
+                    ret = true;
+            /*
             foreach (BSPhysObject bp in m_children)
             {
                 if (child.LocalID == bp.LocalID)
@@ -156,6 +176,7 @@ public class BSLinkset
                     break;
                 }
             }
+             */
         }
         return ret;
     }
@@ -163,24 +184,7 @@ public class BSLinkset
     // When physical properties are changed the linkset needs to recalculate
     //   its internal properties.
     // May be called at runtime or taint-time (just pass the appropriate flag).
-    public void Refresh(BSPhysObject requestor, bool inTaintTime)
-    {
-        // If there are no children, not physical or not root, I am not the one that recomputes the constraints
-        // (For the moment, static linksets do create constraints so remove the test for physical.)
-        if (!HasAnyChildren || /*!requestor.IsPhysical ||*/ !IsRoot(requestor))
-            return;
-
-        BSScene.TaintCallback refreshOperation = delegate()
-            {
-                RecomputeLinksetConstraintVariables();
-                DetailLog("{0},BSLinkset.Refresh,complete,rBody={1}", 
-                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
-            };
-        if (inTaintTime)
-            refreshOperation();
-        else
-            PhysicsScene.TaintedObject("BSLinkSet.Refresh", refreshOperation);
-    }
+    public abstract void Refresh(BSPhysObject requestor, bool inTaintTime);
 
     // The object is going dynamic (physical). Do any setup necessary
     //     for a dynamic linkset.
@@ -188,102 +192,35 @@ public class BSLinkset
     //     has not yet been fully constructed.
     // Return 'true' if any properties updated on the passed object.
     // Called at taint-time!
-    public bool MakeDynamic(BSPhysObject child)
-    {
-        // What is done for each object in BSPrim is what we want.
-        return false;
-    }
+    public abstract bool MakeDynamic(BSPhysObject child);
 
     // The object is going static (non-physical). Do any setup necessary
     //     for a static linkset.
     // Return 'true' if any properties updated on the passed object.
     // Called at taint-time!
-    public bool MakeStatic(BSPhysObject child)
-    {
-        // What is done for each object in BSPrim is what we want.
-        return false;
-    }
+    public abstract bool MakeStatic(BSPhysObject child);
 
-    // If the software is handling the movement of all the objects in a linkset
-    // (like if one doesn't use constraints for static linksets), this is called
-    // when an update for the root of the linkset is received.
+    // Called when a parameter update comes from the physics engine for any object
+    //      of the linkset is received.
     // Called at taint-time!!
-    public void UpdateProperties(BSPhysObject physObject)
-    {
-        // The root local properties have been updated. Apply to the children if appropriate.
-        if (IsRoot(physObject) && HasAnyChildren)
-        {
-            if (!physObject.IsPhysical)
-            {
-                // TODO: implement software linkset update for static object linksets
-            }
-        }
-    }
+    public abstract void UpdateProperties(BSPhysObject physObject);
 
     // Routine used when rebuilding the body of the root of the linkset
     // Destroy all the constraints have have been made to root.
     // This is called when the root body is changing.
-    // Returns 'true' of something eas actually removed and would need restoring
+    // Returns 'true' of something was actually removed and would need restoring
     // Called at taint-time!!
-    public bool RemoveBodyDependencies(BSPrim child)
-    {
-        bool ret = false;
-
-        lock (m_linksetActivityLock)
-        {
-            if (IsRoot(child))
-            {
-                // If the one with the dependency is root, must undo all children
-                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeChildrenForRoot,rID={1},rBody={2}",
-                                                child.LocalID, LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
-
-                ret = PhysicallyUnlinkAllChildrenFromRoot(LinksetRoot);
-            }
-            else
-            {
-                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeSingleChild,rID={1},rBody={2},cID={3},cBody={4}",
-                                                child.LocalID,
-                                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
-                                                child.LocalID, child.BSBody.ptr.ToString("X"));
-                // ret = PhysicallyUnlinkAChildFromRoot(LinksetRoot, child);
-                // Despite the function name, this removes any link to the specified object.
-                ret = PhysicallyUnlinkAllChildrenFromRoot(child);
-            }
-        }
-        return ret;
-    }
+    public abstract bool RemoveBodyDependencies(BSPrim child);
 
     // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
-    // this routine will restore the removed constraints.
+    //     this routine will restore the removed constraints.
     // Called at taint-time!!
-    public void RestoreBodyDependencies(BSPrim child)
-    {
-        lock (m_linksetActivityLock)
-        {
-            if (IsRoot(child))
-            {
-                DetailLog("{0},BSLinkset.RestoreBodyDependencies,restoreChildrenForRoot,rID={1},numChild={2}",
-                                                child.LocalID, LinksetRoot.LocalID, m_taintChildren.Count);
-                foreach (BSPhysObject bpo in m_taintChildren)
-                {
-                    PhysicallyLinkAChildToRoot(LinksetRoot, bpo);
-                }
-            }
-            else
-            {
-                DetailLog("{0},BSLinkset.RestoreBodyDependencies,restoreSingleChild,rID={1},rBody={2},cID={3},cBody={4}",
-                                                LinksetRoot.LocalID,
-                                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
-                                                child.LocalID, child.BSBody.ptr.ToString("X"));
-                PhysicallyLinkAChildToRoot(LinksetRoot, child);
-            }
-        }
-    }
+    public abstract void RestoreBodyDependencies(BSPrim child);
 
     // ================================================================
     // Below this point is internal magic
 
-    private float ComputeLinksetMass()
+    protected virtual float ComputeLinksetMass()
     {
         float mass;
         lock (m_linksetActivityLock)
@@ -297,7 +234,7 @@ public class BSLinkset
         return mass;
     }
 
-    private OMV.Vector3 ComputeLinksetCenterOfMass()
+    protected virtual OMV.Vector3 ComputeLinksetCenterOfMass()
     {
         OMV.Vector3 com;
         lock (m_linksetActivityLock)
@@ -317,7 +254,7 @@ public class BSLinkset
         return com;
     }
 
-    private OMV.Vector3 ComputeLinksetGeometricCenter()
+    protected virtual OMV.Vector3 ComputeLinksetGeometricCenter()
     {
         OMV.Vector3 com;
         lock (m_linksetActivityLock)
@@ -336,236 +273,21 @@ public class BSLinkset
 
     // I am the root of a linkset and a new child is being added
     // Called while LinkActivity is locked.
-    private void AddChildToLinkset(BSPhysObject child)
-    {
-        if (!HasChild(child))
-        {
-            m_children.Add(child);
-
-            BSPhysObject rootx = LinksetRoot; // capture the root as of now
-            BSPhysObject childx = child;
-
-            DetailLog("{0},AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
-
-            PhysicsScene.TaintedObject("AddChildToLinkset", delegate()
-            {
-                DetailLog("{0},AddChildToLinkset,taint,rID={1},rBody={2},cID={3},cBody={4}", 
-                                rootx.LocalID,
-                                rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
-                                childx.LocalID, childx.BSBody.ptr.ToString("X"));
-                // Since this is taint-time, the body and shape could have changed for the child
-                rootx.ForcePosition = rootx.Position;   // DEBUG
-                childx.ForcePosition = childx.Position;   // DEBUG
-                PhysicallyLinkAChildToRoot(rootx, childx);
-                m_taintChildren.Add(child);
-            });
-        }
-        return;
-    }
+    protected abstract void AddChildToLinkset(BSPhysObject child);
 
     // Forcefully removing a child from a linkset.
     // This is not being called by the child so we have to make sure the child doesn't think
     //    it's still connected to the linkset.
     // Normal OpenSimulator operation will never do this because other SceneObjectPart information
     //    also has to be updated (like pointer to prim's parent).
-    private void RemoveChildFromOtherLinkset(BSPhysObject pchild)
-    {
-        pchild.Linkset = new BSLinkset(PhysicsScene, pchild);
-        RemoveChildFromLinkset(pchild);
-    }
+    protected abstract void RemoveChildFromOtherLinkset(BSPhysObject pchild);
 
     // I am the root of a linkset and one of my children is being removed.
     // Safe to call even if the child is not really in my linkset.
-    private void RemoveChildFromLinkset(BSPhysObject child)
-    {
-        if (m_children.Remove(child))
-        {
-            BSPhysObject rootx = LinksetRoot; // capture the root and body as of now
-            BSPhysObject childx = child;
-
-            DetailLog("{0},RemoveChildFromLinkset,call,rID={1},rBody={2},cID={3},cBody={4}", 
-                            childx.LocalID,
-                            rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
-                            childx.LocalID, childx.BSBody.ptr.ToString("X"));
-
-            PhysicsScene.TaintedObject("RemoveChildFromLinkset", delegate()
-            {
-                m_taintChildren.Remove(child);
-                PhysicallyUnlinkAChildFromRoot(rootx, childx);
-                RecomputeLinksetConstraintVariables();
-            });
-
-        }
-        else
-        {
-            // This will happen if we remove the root of the linkset first. Non-fatal occurance.
-            // PhysicsScene.Logger.ErrorFormat("{0}: Asked to remove child from linkset that was not in linkset", LogHeader);
-        }
-        return;
-    }
-
-    // Create a constraint between me (root of linkset) and the passed prim (the child).
-    // Called at taint time!
-    private void PhysicallyLinkAChildToRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
-    {
-        // Zero motion for children so they don't interpolate
-        childPrim.ZeroMotion();
-
-        // Relative position normalized to the root prim
-        // Essentually a vector pointing from center of rootPrim to center of childPrim
-        OMV.Vector3 childRelativePosition = childPrim.Position - rootPrim.Position;
-
-        // real world coordinate of midpoint between the two objects
-        OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
-
-        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6},midLoc={7}",
-                                        rootPrim.LocalID,
-                                        rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
-                                        childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"),
-                                        rootPrim.Position, childPrim.Position, midPoint);
-
-        // create a constraint that allows no freedom of movement between the two objects
-        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
-
-        BS6DofConstraint constrain = new BS6DofConstraint(
-                            PhysicsScene.World, rootPrim.BSBody, childPrim.BSBody, midPoint, true, true );
-
-        /* NOTE: below is an attempt to build constraint with full frame computation, etc.
-         *     Using the midpoint is easier since it lets the Bullet code manipulate the transforms
-         *     of the objects.
-         * Code left as a warning to future programmers.
-        // ==================================================================================
-        // relative position normalized to the root prim
-        OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
-        OMV.Vector3 childRelativePosition = (childPrim.Position - rootPrim.Position) * invThisOrientation;
-
-        // relative rotation of the child to the parent
-        OMV.Quaternion childRelativeRotation = invThisOrientation * childPrim.Orientation;
-        OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
-
-        // create a constraint that allows no freedom of movement between the two objects
-        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
-        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
-        BS6DofConstraint constrain = new BS6DofConstraint(
-                        PhysicsScene.World, rootPrim.Body, childPrim.Body,
-                        OMV.Vector3.Zero,
-                        OMV.Quaternion.Inverse(rootPrim.Orientation),
-                        OMV.Vector3.Zero,
-                        OMV.Quaternion.Inverse(childPrim.Orientation),
-                        // A point half way between the parent and child
-                        // childRelativePosition/2,
-                        // childRelativeRotation,
-                        // childRelativePosition/2,
-                        // inverseChildRelativeRotation,
-                        true,
-                        true
-                        );
-        // ==================================================================================
-        */
-
-        PhysicsScene.Constraints.AddConstraint(constrain);
-
-        // zero linear and angular limits makes the objects unable to move in relation to each other
-        constrain.SetLinearLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
-        constrain.SetAngularLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
-
-        // tweek the constraint to increase stability
-        constrain.UseFrameOffset(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintUseFrameOffset));
-        constrain.TranslationalLimitMotor(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintEnableTransMotor),
-                        PhysicsScene.Params.linkConstraintTransMotorMaxVel,
-                        PhysicsScene.Params.linkConstraintTransMotorMaxForce);
-        constrain.SetCFMAndERP(PhysicsScene.Params.linkConstraintCFM, PhysicsScene.Params.linkConstraintERP);
-        if (PhysicsScene.Params.linkConstraintSolverIterations != 0f)
-        {
-            constrain.SetSolverIterations(PhysicsScene.Params.linkConstraintSolverIterations);
-        }
-    }
-
-    // Remove linkage between myself and a particular child
-    // The root and child bodies are passed in because we need to remove the constraint between
-    //      the bodies that were at unlink time.
-    // Called at taint time!
-    private bool PhysicallyUnlinkAChildFromRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
-    {
-        bool ret = false;
-        DetailLog("{0},BSLinkset.PhysicallyUnlinkAChildFromRoot,taint,root={1},rBody={2},child={3},cBody={4}",
-                            rootPrim.LocalID,
-                            rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
-                            childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"));
-
-        // Find the constraint for this link and get rid of it from the overall collection and from my list
-        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody, childPrim.BSBody))
-        {
-            // Make the child refresh its location
-            BulletSimAPI.PushUpdate2(childPrim.BSBody.ptr);
-            ret = true;
-        }
-
-        return ret;
-    }
-
-    // Remove linkage between myself and any possible children I might have.
-    // Called at taint time!
-    private bool PhysicallyUnlinkAllChildrenFromRoot(BSPhysObject rootPrim)
-    {
-        DetailLog("{0},BSLinkset.PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
-        bool ret = false;
-
-        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody))
-        {
-            ret = true;
-        }
-        return ret;
-    }
-
-    // Call each of the constraints that make up this linkset and recompute the
-    //    various transforms and variables. Used when objects are added or removed
-    //    from a linkset to make sure the constraints know about the new mass and
-    //    geometry.
-    // Must only be called at taint time!!
-    private void RecomputeLinksetConstraintVariables()
-    {
-        float linksetMass = LinksetMass;
-        foreach (BSPhysObject child in m_taintChildren)
-        {
-            BSConstraint constrain;
-            if (PhysicsScene.Constraints.TryGetConstraint(LinksetRoot.BSBody, child.BSBody, out constrain))
-            {
-                // DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,taint,child={1},mass={2},A={3},B={4}",
-                //         LinksetRoot.LocalID, child.LocalID, linksetMass, constrain.Body1.ID, constrain.Body2.ID);
-                constrain.RecomputeConstraintVariables(linksetMass);
-            }
-            else
-            {
-                // Non-fatal error that happens when children are being added to the linkset but
-                //    their constraints have not been created yet.
-                break;
-            }
-        }
-
-        // If the whole linkset is not here, doesn't make sense to recompute linkset wide values
-        if (m_children.Count == m_taintChildren.Count)
-        {
-            // If this is a multiple object linkset, set everybody's center of mass to the set's center of mass
-            OMV.Vector3 centerOfMass = ComputeLinksetCenterOfMass();
-            BulletSimAPI.SetCenterOfMassByPosRot2(LinksetRoot.BSBody.ptr, 
-                                centerOfMass, OMV.Quaternion.Identity);
-            DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,setCenterOfMass,COM={1},rBody={2}",
-                                LinksetRoot.LocalID, centerOfMass, LinksetRoot.BSBody.ptr.ToString("X"));
-            foreach (BSPhysObject child in m_taintChildren)
-            {
-                BulletSimAPI.SetCenterOfMassByPosRot2(child.BSBody.ptr, 
-                                centerOfMass, OMV.Quaternion.Identity);
-            }
-
-            // BulletSimAPI.DumpAllInfo2(PhysicsScene.World.ptr);  // DEBUG DEBUG DEBUG
-        }
-        return;
-    }
-
+    protected abstract void RemoveChildFromLinkset(BSPhysObject child);
 
     // Invoke the detailed logger and output something if it's enabled.
-    private void DetailLog(string msg, params Object[] args)
+    protected void DetailLog(string msg, params Object[] args)
     {
         if (PhysicsScene.PhysicsLogging.Enabled)
             PhysicsScene.DetailLog(msg, args);
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
new file mode 100755
index 0000000000..8a750b52b7
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinksetConstraints.cs
@@ -0,0 +1,385 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyrightD
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+using OMV = OpenMetaverse;
+
+namespace OpenSim.Region.Physics.BulletSPlugin
+{
+public class BSLinksetConstraints : BSLinkset
+{
+    // private static string LogHeader = "[BULLETSIM LINKSET CONSTRAINTS]";
+
+    public BSLinksetConstraints(BSScene scene, BSPhysObject parent)
+    {
+        base.Initialize(scene, parent);
+    }
+
+    // When physical properties are changed the linkset needs to recalculate
+    //   its internal properties.
+    // May be called at runtime or taint-time (just pass the appropriate flag).
+    public override void Refresh(BSPhysObject requestor, bool inTaintTime)
+    {
+        // If there are no children or not root, I am not the one that recomputes the constraints
+        if (!HasAnyChildren || !IsRoot(requestor))
+            return;
+
+        BSScene.TaintCallback refreshOperation = delegate()
+            {
+                RecomputeLinksetConstraintVariables();
+                DetailLog("{0},BSLinkset.Refresh,complete,rBody={1}",
+                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
+            };
+        if (inTaintTime)
+            refreshOperation();
+        else
+            PhysicsScene.TaintedObject("BSLinkSet.Refresh", refreshOperation);
+    }
+
+    // The object is going dynamic (physical). Do any setup necessary
+    //     for a dynamic linkset.
+    // Only the state of the passed object can be modified. The rest of the linkset
+    //     has not yet been fully constructed.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public override bool MakeDynamic(BSPhysObject child)
+    {
+        // What is done for each object in BSPrim is what we want.
+        return false;
+    }
+
+    // The object is going static (non-physical). Do any setup necessary
+    //     for a static linkset.
+    // Return 'true' if any properties updated on the passed object.
+    // Called at taint-time!
+    public override bool MakeStatic(BSPhysObject child)
+    {
+        // What is done for each object in BSPrim is what we want.
+        return false;
+    }
+
+    // Called at taint-time!!
+    public override void UpdateProperties(BSPhysObject updated)
+    {
+        // Nothing to do for constraints on property updates
+    }
+
+    // Routine used when rebuilding the body of the root of the linkset
+    // Destroy all the constraints have have been made to root.
+    // This is called when the root body is changing.
+    // Returns 'true' of something eas actually removed and would need restoring
+    // Called at taint-time!!
+    public override bool RemoveBodyDependencies(BSPrim child)
+    {
+        bool ret = false;
+
+        lock (m_linksetActivityLock)
+        {
+            if (IsRoot(child))
+            {
+                // If the one with the dependency is root, must undo all children
+                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeChildrenForRoot,rID={1},rBody={2}",
+                                                child.LocalID, LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
+
+                ret = PhysicallyUnlinkAllChildrenFromRoot(LinksetRoot);
+            }
+            else
+            {
+                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeSingleChild,rID={1},rBody={2},cID={3},cBody={4}",
+                                                child.LocalID,
+                                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
+                                                child.LocalID, child.BSBody.ptr.ToString("X"));
+                // ret = PhysicallyUnlinkAChildFromRoot(LinksetRoot, child);
+                // Despite the function name, this removes any link to the specified object.
+                ret = PhysicallyUnlinkAllChildrenFromRoot(child);
+            }
+        }
+        return ret;
+    }
+
+    // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
+    // this routine will restore the removed constraints.
+    // Called at taint-time!!
+    public override void RestoreBodyDependencies(BSPrim child)
+    {
+        lock (m_linksetActivityLock)
+        {
+            if (IsRoot(child))
+            {
+                DetailLog("{0},BSLinkset.RestoreBodyDependencies,restoreChildrenForRoot,rID={1},numChild={2}",
+                                                child.LocalID, LinksetRoot.LocalID, m_taintChildren.Count);
+                foreach (BSPhysObject bpo in m_taintChildren)
+                {
+                    PhysicallyLinkAChildToRoot(LinksetRoot, bpo);
+                }
+            }
+            else
+            {
+                DetailLog("{0},BSLinkset.RestoreBodyDependencies,restoreSingleChild,rID={1},rBody={2},cID={3},cBody={4}",
+                                                LinksetRoot.LocalID,
+                                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
+                                                child.LocalID, child.BSBody.ptr.ToString("X"));
+                PhysicallyLinkAChildToRoot(LinksetRoot, child);
+            }
+        }
+    }
+
+    // ================================================================
+    // Below this point is internal magic
+
+    // I am the root of a linkset and a new child is being added
+    // Called while LinkActivity is locked.
+    protected override void AddChildToLinkset(BSPhysObject child)
+    {
+        if (!HasChild(child))
+        {
+            m_children.Add(child);
+
+            BSPhysObject rootx = LinksetRoot; // capture the root as of now
+            BSPhysObject childx = child;
+
+            DetailLog("{0},AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
+
+            PhysicsScene.TaintedObject("AddChildToLinkset", delegate()
+            {
+                DetailLog("{0},AddChildToLinkset,taint,rID={1},rBody={2},cID={3},cBody={4}",
+                                rootx.LocalID,
+                                rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
+                                childx.LocalID, childx.BSBody.ptr.ToString("X"));
+                // Since this is taint-time, the body and shape could have changed for the child
+                rootx.ForcePosition = rootx.Position;   // DEBUG
+                childx.ForcePosition = childx.Position;   // DEBUG
+                PhysicallyLinkAChildToRoot(rootx, childx);
+                m_taintChildren.Add(child);
+            });
+        }
+        return;
+    }
+
+    // Forcefully removing a child from a linkset.
+    // This is not being called by the child so we have to make sure the child doesn't think
+    //    it's still connected to the linkset.
+    // Normal OpenSimulator operation will never do this because other SceneObjectPart information
+    //    also has to be updated (like pointer to prim's parent).
+    protected override void RemoveChildFromOtherLinkset(BSPhysObject pchild)
+    {
+        pchild.Linkset = BSLinkset.Factory(PhysicsScene, pchild);
+        RemoveChildFromLinkset(pchild);
+    }
+
+    // I am the root of a linkset and one of my children is being removed.
+    // Safe to call even if the child is not really in my linkset.
+    protected override void RemoveChildFromLinkset(BSPhysObject child)
+    {
+        if (m_children.Remove(child))
+        {
+            BSPhysObject rootx = LinksetRoot; // capture the root and body as of now
+            BSPhysObject childx = child;
+
+            DetailLog("{0},RemoveChildFromLinkset,call,rID={1},rBody={2},cID={3},cBody={4}",
+                            childx.LocalID,
+                            rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
+                            childx.LocalID, childx.BSBody.ptr.ToString("X"));
+
+            PhysicsScene.TaintedObject("RemoveChildFromLinkset", delegate()
+            {
+                m_taintChildren.Remove(child);
+                PhysicallyUnlinkAChildFromRoot(rootx, childx);
+                RecomputeLinksetConstraintVariables();
+            });
+
+        }
+        else
+        {
+            // This will happen if we remove the root of the linkset first. Non-fatal occurance.
+            // PhysicsScene.Logger.ErrorFormat("{0}: Asked to remove child from linkset that was not in linkset", LogHeader);
+        }
+        return;
+    }
+
+    // Create a constraint between me (root of linkset) and the passed prim (the child).
+    // Called at taint time!
+    private void PhysicallyLinkAChildToRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
+    {
+        // Zero motion for children so they don't interpolate
+        childPrim.ZeroMotion();
+
+        // Relative position normalized to the root prim
+        // Essentually a vector pointing from center of rootPrim to center of childPrim
+        OMV.Vector3 childRelativePosition = childPrim.Position - rootPrim.Position;
+
+        // real world coordinate of midpoint between the two objects
+        OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
+
+        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6},midLoc={7}",
+                                        rootPrim.LocalID,
+                                        rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
+                                        childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"),
+                                        rootPrim.Position, childPrim.Position, midPoint);
+
+        // create a constraint that allows no freedom of movement between the two objects
+        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
+
+        BS6DofConstraint constrain = new BS6DofConstraint(
+                            PhysicsScene.World, rootPrim.BSBody, childPrim.BSBody, midPoint, true, true );
+
+        /* NOTE: below is an attempt to build constraint with full frame computation, etc.
+         *     Using the midpoint is easier since it lets the Bullet code manipulate the transforms
+         *     of the objects.
+         * Code left as a warning to future programmers.
+        // ==================================================================================
+        // relative position normalized to the root prim
+        OMV.Quaternion invThisOrientation = OMV.Quaternion.Inverse(rootPrim.Orientation);
+        OMV.Vector3 childRelativePosition = (childPrim.Position - rootPrim.Position) * invThisOrientation;
+
+        // relative rotation of the child to the parent
+        OMV.Quaternion childRelativeRotation = invThisOrientation * childPrim.Orientation;
+        OMV.Quaternion inverseChildRelativeRotation = OMV.Quaternion.Inverse(childRelativeRotation);
+
+        // create a constraint that allows no freedom of movement between the two objects
+        // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
+        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
+        BS6DofConstraint constrain = new BS6DofConstraint(
+                        PhysicsScene.World, rootPrim.Body, childPrim.Body,
+                        OMV.Vector3.Zero,
+                        OMV.Quaternion.Inverse(rootPrim.Orientation),
+                        OMV.Vector3.Zero,
+                        OMV.Quaternion.Inverse(childPrim.Orientation),
+                        // A point half way between the parent and child
+                        // childRelativePosition/2,
+                        // childRelativeRotation,
+                        // childRelativePosition/2,
+                        // inverseChildRelativeRotation,
+                        true,
+                        true
+                        );
+        // ==================================================================================
+        */
+
+        PhysicsScene.Constraints.AddConstraint(constrain);
+
+        // zero linear and angular limits makes the objects unable to move in relation to each other
+        constrain.SetLinearLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
+        constrain.SetAngularLimits(OMV.Vector3.Zero, OMV.Vector3.Zero);
+
+        // tweek the constraint to increase stability
+        constrain.UseFrameOffset(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintUseFrameOffset));
+        constrain.TranslationalLimitMotor(PhysicsScene.BoolNumeric(PhysicsScene.Params.linkConstraintEnableTransMotor),
+                        PhysicsScene.Params.linkConstraintTransMotorMaxVel,
+                        PhysicsScene.Params.linkConstraintTransMotorMaxForce);
+        constrain.SetCFMAndERP(PhysicsScene.Params.linkConstraintCFM, PhysicsScene.Params.linkConstraintERP);
+        if (PhysicsScene.Params.linkConstraintSolverIterations != 0f)
+        {
+            constrain.SetSolverIterations(PhysicsScene.Params.linkConstraintSolverIterations);
+        }
+    }
+
+    // Remove linkage between myself and a particular child
+    // The root and child bodies are passed in because we need to remove the constraint between
+    //      the bodies that were at unlink time.
+    // Called at taint time!
+    private bool PhysicallyUnlinkAChildFromRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
+    {
+        bool ret = false;
+        DetailLog("{0},BSLinkset.PhysicallyUnlinkAChildFromRoot,taint,root={1},rBody={2},child={3},cBody={4}",
+                            rootPrim.LocalID,
+                            rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
+                            childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"));
+
+        // Find the constraint for this link and get rid of it from the overall collection and from my list
+        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody, childPrim.BSBody))
+        {
+            // Make the child refresh its location
+            BulletSimAPI.PushUpdate2(childPrim.BSBody.ptr);
+            ret = true;
+        }
+
+        return ret;
+    }
+
+    // Remove linkage between myself and any possible children I might have.
+    // Called at taint time!
+    private bool PhysicallyUnlinkAllChildrenFromRoot(BSPhysObject rootPrim)
+    {
+        DetailLog("{0},BSLinkset.PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
+        bool ret = false;
+
+        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody))
+        {
+            ret = true;
+        }
+        return ret;
+    }
+
+    // Call each of the constraints that make up this linkset and recompute the
+    //    various transforms and variables. Used when objects are added or removed
+    //    from a linkset to make sure the constraints know about the new mass and
+    //    geometry.
+    // Must only be called at taint time!!
+    private void RecomputeLinksetConstraintVariables()
+    {
+        float linksetMass = LinksetMass;
+        foreach (BSPhysObject child in m_taintChildren)
+        {
+            BSConstraint constrain;
+            if (PhysicsScene.Constraints.TryGetConstraint(LinksetRoot.BSBody, child.BSBody, out constrain))
+            {
+                // DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,taint,child={1},mass={2},A={3},B={4}",
+                //         LinksetRoot.LocalID, child.LocalID, linksetMass, constrain.Body1.ID, constrain.Body2.ID);
+                constrain.RecomputeConstraintVariables(linksetMass);
+            }
+            else
+            {
+                // Non-fatal error that happens when children are being added to the linkset but
+                //    their constraints have not been created yet.
+                break;
+            }
+        }
+
+        // If the whole linkset is not here, doesn't make sense to recompute linkset wide values
+        if (m_children.Count == m_taintChildren.Count)
+        {
+            // If this is a multiple object linkset, set everybody's center of mass to the set's center of mass
+            OMV.Vector3 centerOfMass = ComputeLinksetCenterOfMass();
+            BulletSimAPI.SetCenterOfMassByPosRot2(LinksetRoot.BSBody.ptr,
+                                centerOfMass, OMV.Quaternion.Identity);
+            DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,setCenterOfMass,COM={1},rBody={2}",
+                                LinksetRoot.LocalID, centerOfMass, LinksetRoot.BSBody.ptr.ToString("X"));
+            foreach (BSPhysObject child in m_taintChildren)
+            {
+                BulletSimAPI.SetCenterOfMassByPosRot2(child.BSBody.ptr,
+                                centerOfMass, OMV.Quaternion.Identity);
+            }
+
+            // BulletSimAPI.DumpAllInfo2(PhysicsScene.World.ptr);  // DEBUG DEBUG DEBUG
+        }
+        return;
+    }
+}
+}
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
index ead6a08f43..538f9056a5 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
@@ -46,7 +46,7 @@ public abstract class BSPhysObject : PhysicsActor
         PhysObjectName = name;
         TypeName = typeName;
 
-        Linkset = new BSLinkset(PhysicsScene, this);
+        Linkset = BSLinkset.Factory(PhysicsScene, this);
         LastAssetBuildFailed = false;
 
         CollisionCollection = new CollisionEventUpdate();
@@ -78,7 +78,7 @@ public abstract class BSPhysObject : PhysicsActor
     public PrimitiveBaseShape BaseShape { get; protected set; }
 
     // When the physical properties are updated, an EntityProperty holds the update values.
-    // Keep the current and last EntityProperties to enable computation of differences 
+    // Keep the current and last EntityProperties to enable computation of differences
     //      between the current update and the previous values.
     public EntityProperties CurrentEntityProperties { get; set; }
     public EntityProperties LastEntityProperties { get; set; }
@@ -213,7 +213,7 @@ public abstract class BSPhysObject : PhysicsActor
             UnSubscribeEvents();
         }
     }
-    public override void UnSubscribeEvents() { 
+    public override void UnSubscribeEvents() {
         // DetailLog("{0},{1}.UnSubscribeEvents,unsubscribing", LocalID, TypeName);
         SubscribedEventsMs = 0;
         PhysicsScene.TaintedObject(TypeName+".UnSubscribeEvents", delegate()
@@ -222,7 +222,7 @@ public abstract class BSPhysObject : PhysicsActor
         });
     }
     // Return 'true' if the simulator wants collision events
-    public override bool SubscribedEvents() { 
+    public override bool SubscribedEvents() {
         return (SubscribedEventsMs > 0);
     }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index aeeb4dd27b..38ab3de65d 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -173,6 +173,7 @@ public sealed class BSPrim : BSPhysObject
     }
     public override bool ForceBodyShapeRebuild(bool inTaintTime)
     {
+        LastAssetBuildFailed = false;
         BSScene.TaintCallback rebuildOperation = delegate()
         {
             _mass = CalculateMass();   // changing the shape changes the mass
@@ -295,7 +296,7 @@ public sealed class BSPrim : BSPhysObject
     private bool PositionSanityCheck()
     {
         bool ret = false;
-      
+
         // If totally below the ground, move the prim up
         // TODO: figure out the right solution for this... only for dynamic objects?
         /*
@@ -398,7 +399,7 @@ public sealed class BSPrim : BSPhysObject
             {
                 // Done at taint time so we're sure the physics engine is not using the variables
                 // Vehicle code changes the parameters for this vehicle type.
-                this._vehicle.ProcessTypeChange(type);
+                _vehicle.ProcessTypeChange(type);
             });
         }
     }
@@ -510,7 +511,7 @@ public sealed class BSPrim : BSPhysObject
             });
         }
     }
-    // Go directly to Bullet to get/set the value. 
+    // Go directly to Bullet to get/set the value.
     public override OMV.Quaternion ForceOrientation
     {
         get
@@ -768,7 +769,7 @@ public sealed class BSPrim : BSPhysObject
         }
     }
     public override bool FloatOnWater {
-        set { 
+        set {
             _floatOnWater = value;
             PhysicsScene.TaintedObject("BSPrim.setFloatOnWater", delegate()
             {
@@ -971,7 +972,7 @@ public sealed class BSPrim : BSPhysObject
                     if (hollowAmount > 0.0)
                         {
                         hollowVolume *= hollowAmount;
-   
+
                         switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Square:
@@ -1245,13 +1246,14 @@ public sealed class BSPrim : BSPhysObject
         FillShapeInfo(out shapeData);
 
         // If this prim is part of a linkset, we must remove and restore the physical
-        //    links of the body is rebuilt.
+        //    links if the body is rebuilt.
         bool needToRestoreLinkset = false;
 
         // Create the correct physical representation for this type of object.
         // Updates BSBody and BSShape with the new information.
         // Ignore 'forceRebuild'. This routine makes the right choices and changes of necessary.
-        PhysicsScene.Shapes.GetBodyAndShape(false, PhysicsScene.World, this, shapeData, BaseShape, 
+        // Returns 'true' if either the body or the shape was changed.
+        PhysicsScene.Shapes.GetBodyAndShape(false, PhysicsScene.World, this, shapeData, BaseShape,
                         null, delegate(BulletBody dBody)
         {
             // Called if the current prim body is about to be destroyed.
@@ -1354,7 +1356,7 @@ public sealed class BSPrim : BSPhysObject
             DetailLog("{0},BSPrim.UpdateProperties,call,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
                     LocalID, _position, _orientation, _velocity, _acceleration, _rotationalVelocity);
 
-            // BulletSimAPI.DumpRigidBody2(Scene.World.Ptr, BSBody.Ptr);
+            // BulletSimAPI.DumpRigidBody2(PhysicsScene.World.ptr, BSBody.ptr);   // DEBUG DEBUG DEBUG
 
             base.RequestPhysicsterseUpdate();
         }
@@ -1367,8 +1369,8 @@ public sealed class BSPrim : BSPhysObject
                     entprop.Acceleration, entprop.RotationalVelocity);
         }
              */
-        // The linkset implimentation might want to know about this.
 
+        // The linkset implimentation might want to know about this.
         Linkset.UpdateProperties(this);
     }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
index 6621d39f2c..db0c99e8d1 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
@@ -320,7 +320,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     {
         m_log.Debug("[BULLETS UNMANAGED]:" + msg);
     }
-  
+
     // Called directly from unmanaged code so don't do much
     private void BulletLoggerPhysLog(string msg)
     {
@@ -545,7 +545,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         }
 
         // This is a kludge to get avatar movement updates.
-        // The simulator expects collisions for avatars even if there are have been no collisions. 
+        // The simulator expects collisions for avatars even if there are have been no collisions.
         //    The event updates avatar animations and stuff.
         // If you fix avatar animation updates, remove this overhead and let normal collision processing happen.
         foreach (BSPhysObject bsp in m_avatars)
@@ -692,7 +692,6 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     {
         if (_taintedObjects.Count > 0)  // save allocating new list if there is nothing to process
         {
-            // swizzle a new list into the list location so we can process what's there
             int taintCount = m_taintsToProcessPerStep;
             TaintCallbackEntry oneCallback = new TaintCallbackEntry();
             while (_taintedObjects.Count > 0 && taintCount-- > 0)
@@ -711,11 +710,12 @@ public class BSScene : PhysicsScene, IPhysicsParameters
                 {
                     try
                     {
-                        DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, oneCallback.ident); // DEBUG DEBUG DEBUG
+                        DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, oneCallback.ident);
                         oneCallback.callback();
                     }
                     catch (Exception e)
                     {
+                        DetailLog("{0},BSScene.ProcessTaints,doTaintException,id={1}", DetailLogZero, oneCallback.ident); // DEBUG DEBUG DEBUG
                         m_log.ErrorFormat("{0}: ProcessTaints: {1}: Exception: {2}", LogHeader, oneCallback.ident, e);
                     }
                 }
@@ -1333,7 +1333,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         // Add the Flush() if debugging crashes to get all the messages written out.
         // PhysicsLogging.Flush();
     }
-    // used to fill in the LocalID when there isn't one
+    // Used to fill in the LocalID when there isn't one. It's the correct number of characters.
     public const string DetailLogZero = "0000000000";
 
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
index d3ba2732a8..30fa50a6fd 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
@@ -36,7 +36,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
 {
 public class BSShapeCollection : IDisposable
 {
-    // private static string LogHeader = "[BULLETSIM SHAPE COLLECTION]";
+    private static string LogHeader = "[BULLETSIM SHAPE COLLECTION]";
 
     protected BSScene PhysicsScene { get; set; }
 
@@ -89,7 +89,7 @@ public class BSShapeCollection : IDisposable
     //    higher level dependencies on the shape or body. Mostly used for LinkSets to
     //    remove the physical constraints before the body is destroyed.
     // Called at taint-time!!
-    public bool GetBodyAndShape(bool forceRebuild, BulletSim sim, BSPhysObject prim, 
+    public bool GetBodyAndShape(bool forceRebuild, BulletSim sim, BSPhysObject prim,
                     ShapeData shapeData, PrimitiveBaseShape pbs,
                     ShapeDestructionCallback shapeCallback, BodyDestructionCallback bodyCallback)
     {
@@ -105,7 +105,7 @@ public class BSShapeCollection : IDisposable
             // If we had to select a new shape geometry for the object,
             //    rebuild the body around it.
             // Updates prim.BSBody with information/pointers to requested body
-            bool newBody = CreateBody((newGeom || forceRebuild), prim, PhysicsScene.World, 
+            bool newBody = CreateBody((newGeom || forceRebuild), prim, PhysicsScene.World,
                                     prim.BSShape, shapeData, bodyCallback);
             ret = newGeom || newBody;
         }
@@ -325,7 +325,7 @@ public class BSShapeCollection : IDisposable
     // Info in prim.BSShape is updated to the new shape.
     // Returns 'true' if the geometry was rebuilt.
     // Called at taint-time!
-    private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeData shapeData, 
+    private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeData shapeData,
                             PrimitiveBaseShape pbs, ShapeDestructionCallback shapeCallback)
     {
         bool ret = false;
@@ -335,9 +335,10 @@ public class BSShapeCollection : IDisposable
         if (shapeData.Type == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
         {
             // an avatar capsule is close to a native shape (it is not shared)
-            ret = GetReferenceToNativeShape(prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_AVATAR, 
+            ret = GetReferenceToNativeShape(prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_AVATAR,
                             ShapeData.FixedShapeKey.KEY_CAPSULE, shapeCallback);
             DetailLog("{0},BSShapeCollection.CreateGeom,avatarCapsule,shape={1}", prim.LocalID, prim.BSShape);
+            ret = true;
             haveShape = true;
         }
         // If the prim attributes are simple, this could be a simple Bullet native shape
@@ -362,7 +363,7 @@ public class BSShapeCollection : IDisposable
                         || prim.BSShape.type != ShapeData.PhysicsShapeType.SHAPE_SPHERE
                         )
                 {
-                    ret = GetReferenceToNativeShape(prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_SPHERE, 
+                    ret = GetReferenceToNativeShape(prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_SPHERE,
                                             ShapeData.FixedShapeKey.KEY_SPHERE, shapeCallback);
                     DetailLog("{0},BSShapeCollection.CreateGeom,sphere,force={1},shape={2}",
                                         prim.LocalID, forceRebuild, prim.BSShape);
@@ -376,7 +377,7 @@ public class BSShapeCollection : IDisposable
                         || prim.BSShape.type != ShapeData.PhysicsShapeType.SHAPE_BOX
                         )
                 {
-                    ret = GetReferenceToNativeShape( prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_BOX, 
+                    ret = GetReferenceToNativeShape( prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_BOX,
                                             ShapeData.FixedShapeKey.KEY_BOX, shapeCallback);
                     DetailLog("{0},BSShapeCollection.CreateGeom,box,force={1},shape={2}",
                                         prim.LocalID, forceRebuild, prim.BSShape);
@@ -411,39 +412,49 @@ public class BSShapeCollection : IDisposable
                             ShapeData.PhysicsShapeType shapeType, ShapeData.FixedShapeKey shapeKey,
                             ShapeDestructionCallback shapeCallback)
     {
+        // release any previous shape
+        DereferenceShape(prim.BSShape, true, shapeCallback);
 
         shapeData.Type = shapeType;
         // Bullet native objects are scaled by the Bullet engine so pass the size in
         prim.Scale = shapeData.Size;
         shapeData.Scale = shapeData.Size;
 
-        // release any previous shape
-        DereferenceShape(prim.BSShape, true, shapeCallback);
-
         BulletShape newShape = BuildPhysicalNativeShape(shapeType, shapeData, shapeKey);
 
         // Don't need to do a 'ReferenceShape()' here because native shapes are not shared.
-        DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}", 
+        DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}",
                                 shapeData.ID, newShape, shapeData.Scale);
 
         prim.BSShape = newShape;
         return true;
     }
 
-    private BulletShape BuildPhysicalNativeShape(ShapeData.PhysicsShapeType shapeType, 
+    private BulletShape BuildPhysicalNativeShape(ShapeData.PhysicsShapeType shapeType,
                         ShapeData shapeData, ShapeData.FixedShapeKey shapeKey)
     {
         BulletShape newShape;
+        // Need to make sure the passed shape information is for the native type.
+        ShapeData nativeShapeData = shapeData;
+        nativeShapeData.Type = shapeType;
+        nativeShapeData.MeshKey = (ulong)shapeKey;
+        nativeShapeData.HullKey = (ulong)shapeKey;
 
         if (shapeType == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
         {
             newShape = new BulletShape(
-                        BulletSimAPI.BuildCapsuleShape2(PhysicsScene.World.ptr, 1.0f, 1.0f, shapeData.Scale), 
-                        shapeType);
+                        BulletSimAPI.BuildCapsuleShape2(PhysicsScene.World.ptr, 1f, 1f, nativeShapeData.Scale)
+                        , shapeType);
+            DetailLog("{0},BSShapeCollection.BuiletPhysicalNativeShape,capsule,scale={1}", nativeShapeData.ID, nativeShapeData.Scale);
         }
         else
         {
-            newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, shapeData), shapeType);
+            newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, nativeShapeData), shapeType);
+        }
+        if (newShape.ptr == IntPtr.Zero)
+        {
+            PhysicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}",
+                                    LogHeader, nativeShapeData.ID, nativeShapeData.Type);
         }
         newShape.shapeKey = (System.UInt64)shapeKey;
         newShape.isNativeShape = true;
@@ -698,19 +709,26 @@ public class BSShapeCollection : IDisposable
         return ComputeShapeKey(shapeData, pbs, out lod);
     }
 
+    // The creation of a mesh or hull can fail if an underlying asset is not available.
+    // There are two cases: 1) the asset is not in the cache and it needs to be fetched;
+    //     and 2) the asset cannot be converted (like decompressing JPEG2000s).
+    //     The first case causes the asset to be fetched. The second case just requires
+    //     us to not loop forever.
+    // Called after creating a physical mesh or hull. If the physical shape was created,
+    //     just return.
     private BulletShape VerifyMeshCreated(BulletShape newShape, BSPhysObject prim, ShapeData shapeData, PrimitiveBaseShape pbs)
     {
         // If the shape was successfully created, nothing more to do
         if (newShape.ptr != IntPtr.Zero)
             return newShape;
 
-        // The most common reason for failure is that an underlying asset is not available
-
         // If this mesh has an underlying asset and we have not failed getting it before, fetch the asset
         if (pbs.SculptEntry && !prim.LastAssetBuildFailed && pbs.SculptTexture != OMV.UUID.Zero)
         {
             prim.LastAssetBuildFailed = true;
             BSPhysObject xprim = prim;
+            DetailLog("{0},BSShapeCollection.VerifyMeshCreated,fetchAsset,lID={1},lastFailed={2}",
+                            LogHeader, shapeData.ID.ToString("X"), prim.LastAssetBuildFailed);
             Util.FireAndForget(delegate
                 {
                     RequestAssetDelegate assetProvider = PhysicsScene.RequestAssetMethod;
@@ -724,20 +742,28 @@ public class BSShapeCollection : IDisposable
                             if (yprim.BaseShape.SculptTexture.ToString() != asset.ID)
                                 return;
 
-                            yprim.BaseShape.SculptData = new byte[asset.Data.Length];
-                            asset.Data.CopyTo(yprim.BaseShape.SculptData, 0);
+                            yprim.BaseShape.SculptData = asset.Data;
                             // This will cause the prim to see that the filler shape is not the right
                             //    one and try again to build the object.
+                            // No race condition with the native sphere setting since the rebuild is at taint time.
                             yprim.ForceBodyShapeRebuild(false);
 
                         });
                     }
                 });
         }
+        else
+        {
+            if (prim.LastAssetBuildFailed)
+            {
+                PhysicsScene.Logger.ErrorFormat("{0} Mesh failed to fetch asset. lID={1}, texture={2}",
+                                            LogHeader, shapeData.ID, pbs.SculptTexture);
+            }
+        }
 
         // While we figure out the real problem, stick a simple native shape on the object.
         BulletShape fillinShape =
-            BuildPhysicalNativeShape(ShapeData.PhysicsShapeType.SHAPE_SPHERE, shapeData, ShapeData.FixedShapeKey.KEY_SPHERE);
+            BuildPhysicalNativeShape(ShapeData.PhysicsShapeType.SHAPE_BOX, shapeData, ShapeData.FixedShapeKey.KEY_BOX);
 
         return fillinShape;
     }
@@ -746,7 +772,7 @@ public class BSShapeCollection : IDisposable
     // Updates prim.BSBody with the information about the new body if one is created.
     // Returns 'true' if an object was actually created.
     // Called at taint-time.
-    private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletSim sim, BulletShape shape, 
+    private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletSim sim, BulletShape shape,
                             ShapeData shapeData, BodyDestructionCallback bodyCallback)
     {
         bool ret = false;
@@ -765,7 +791,6 @@ public class BSShapeCollection : IDisposable
                 // If the collisionObject is not the correct type for solidness, rebuild what's there
                 mustRebuild = true;
             }
-
         }
 
         if (mustRebuild || forceRebuild)
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
index 41065344e2..880859a12d 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
@@ -201,9 +201,7 @@ public class BSTerrainManager
     // If called with a mapInfo in m_heightMaps and there is an existing terrain body, a new
     //     terrain shape is created and added to the body.
     //     This call is most often used to update the heightMap and parameters of the terrain.
-    // The 'doNow' boolean says whether to do all the unmanaged activities right now (like when
-    //     calling this routine from initialization or taint-time routines) or whether to delay
-    //     all the unmanaged activities to taint-time.
+    // (The above does suggest that some simplification/refactoring is in order.)
     private void UpdateOrCreateTerrain(uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords, bool inTaintTime)
     {
         DetailLog("{0},BSTerrainManager.UpdateOrCreateTerrain,call,minC={1},maxC={2},inTaintTime={3}",
@@ -335,8 +333,8 @@ public class BSTerrainManager
 
                 // Make sure the new shape is processed.
                 // BulletSimAPI.Activate2(mapInfo.terrainBody.ptr, true);
-                BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.ISLAND_SLEEPING);
-                // BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.DISABLE_SIMULATION);
+                // BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.ISLAND_SLEEPING);
+                BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.DISABLE_SIMULATION);
 
                 m_terrainModified = true;
             };
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
index 190fca0253..905540d36e 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCombinerModule.cs
@@ -719,21 +719,21 @@ namespace OpenSim.Region.RegionCombinerModule
                 rootConn.ClientEventForwarder = new RegionCombinerClientEventForwarder(rootConn);
     
                 // Sets up the CoarseLocationUpdate forwarder for this root region
-                scene.EventManager.OnNewPresence += SetCourseLocationDelegate;
+                scene.EventManager.OnNewPresence += SetCoarseLocationDelegate;
     
                 // Adds this root region to a dictionary of regions that are connectable
                 m_regions.Add(scene.RegionInfo.originRegionID, rootConn);
             }
         }
 
-        private void SetCourseLocationDelegate(ScenePresence presence)
+        private void SetCoarseLocationDelegate(ScenePresence presence)
         {
-            presence.SetSendCourseLocationMethod(SendCourseLocationUpdates);
+            presence.SetSendCoarseLocationMethod(SendCoarseLocationUpdates);
         }
 
         // This delegate was refactored for non-combined regions.
         // This combined region version will not use the pre-compiled lists of locations and ids
-        private void SendCourseLocationUpdates(UUID sceneId, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
+        private void SendCoarseLocationUpdates(UUID sceneId, ScenePresence presence, List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
         {
             RegionConnections connectiondata = null; 
             lock (m_regions)
@@ -756,18 +756,18 @@ namespace OpenSim.Region.RegionCombinerModule
                 }
             });
 
-            DistributeCourseLocationUpdates(CoarseLocations, AvatarUUIDs, connectiondata, presence);
+            DistributeCoarseLocationUpdates(CoarseLocations, AvatarUUIDs, connectiondata, presence);
         }
 
-        private void DistributeCourseLocationUpdates(List<Vector3> locations, List<UUID> uuids, 
+        private void DistributeCoarseLocationUpdates(List<Vector3> locations, List<UUID> uuids, 
                                                      RegionConnections connectiondata, ScenePresence rootPresence)
         {
             RegionData[] rdata = connectiondata.ConnectedRegions.ToArray();
             //List<IClientAPI> clients = new List<IClientAPI>();
-            Dictionary<Vector2, RegionCourseLocationStruct> updates = new Dictionary<Vector2, RegionCourseLocationStruct>();
+            Dictionary<Vector2, RegionCoarseLocationStruct> updates = new Dictionary<Vector2, RegionCoarseLocationStruct>();
             
             // Root Region entry
-            RegionCourseLocationStruct rootupdatedata = new RegionCourseLocationStruct();
+            RegionCoarseLocationStruct rootupdatedata = new RegionCoarseLocationStruct();
             rootupdatedata.Locations = new List<Vector3>();
             rootupdatedata.Uuids = new List<UUID>();
             rootupdatedata.Offset = Vector2.Zero;
@@ -781,7 +781,7 @@ namespace OpenSim.Region.RegionCombinerModule
             foreach (RegionData regiondata in rdata)
             {
                 Vector2 offset = new Vector2(regiondata.Offset.X, regiondata.Offset.Y);
-                RegionCourseLocationStruct updatedata = new RegionCourseLocationStruct();
+                RegionCoarseLocationStruct updatedata = new RegionCoarseLocationStruct();
                 updatedata.Locations = new List<Vector3>();
                 updatedata.Uuids = new List<UUID>();
                 updatedata.Offset = offset;
@@ -807,7 +807,7 @@ namespace OpenSim.Region.RegionCombinerModule
                 if (!updates.ContainsKey(offset))
                 {
                     // This shouldn't happen
-                    RegionCourseLocationStruct updatedata = new RegionCourseLocationStruct();
+                    RegionCoarseLocationStruct updatedata = new RegionCoarseLocationStruct();
                     updatedata.Locations = new List<Vector3>();
                     updatedata.Uuids = new List<UUID>();
                     updatedata.Offset = offset;
diff --git a/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs b/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
index 53a678f82f..224ac9947c 100644
--- a/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
+++ b/OpenSim/Region/RegionCombinerModule/RegionCourseLocation.cs
@@ -33,7 +33,7 @@ using OpenSim.Framework;
 namespace OpenSim.Region.RegionCombinerModule
 {
 
-    struct RegionCourseLocationStruct
+    struct RegionCoarseLocationStruct
     {
         public List<Vector3> Locations;
         public List<UUID> Uuids;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index cf801baecf..fa57845c7d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -4388,7 +4388,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 {
                     AnimationSet currentAnims = presence.Animator.Animations;
                     string currentAnimationState = String.Empty;
-                    if (animationstateNames.TryGetValue(currentAnims.DefaultAnimation.AnimID, out currentAnimationState))
+                    if (animationstateNames.TryGetValue(currentAnims.ImplicitDefaultAnimation.AnimID, out currentAnimationState))
                         return currentAnimationState;
                 }
             }
@@ -5705,7 +5705,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                  flags |= ScriptBaseClass.AGENT_SITTING;
              }
 
-             if (agent.Animator.Animations.DefaultAnimation.AnimID
+             if (agent.Animator.Animations.ImplicitDefaultAnimation.AnimID
                 == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
              {
                  flags |= ScriptBaseClass.AGENT_SITTING;
@@ -7892,7 +7892,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 {
                     LSL_Vector lower;
                     LSL_Vector upper;
-                    if (presence.Animator.Animations.DefaultAnimation.AnimID
+                    if (presence.Animator.Animations.ImplicitDefaultAnimation.AnimID
                         == DefaultAvatarAnimations.AnimsUUID["SIT_GROUND_CONSTRAINED"])
                     {
                         // This is for ground sitting avatars
@@ -10685,12 +10685,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void Deprecated(string command)
         {
-            throw new Exception("Command deprecated: " + command);
+            throw new ScriptException("Command deprecated: " + command);
         }
 
         internal void LSLError(string msg)
         {
-            throw new Exception("LSL Runtime Error: " + msg);
+            throw new ScriptException("LSL Runtime Error: " + msg);
         }
 
         public delegate void AssetRequestCallback(UUID assetID, AssetBase asset);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
index 6809c09d05..8f348332b6 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
@@ -95,13 +95,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void MODError(string msg)
         {
-            throw new Exception("MOD Runtime Error: " + msg);
+            throw new ScriptException("MOD Runtime Error: " + msg);
         }
 
-        //
-        //Dumps an error message on the debug console.
-        //
-
+        /// <summary>
+        /// Dumps an error message on the debug console.
+        /// </summary>
+        /// <param name='message'></param>
         internal void MODShoutError(string message) 
         {
             if (message.Length > 1023)
@@ -359,20 +359,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             result[i] = (string)(LSL_String)plist[i];                            
                         else if (plist[i] is LSL_Integer)
                             result[i] = (int)(LSL_Integer)plist[i];
+                        // The int check exists because of the many plain old int script constants in ScriptBase which
+                        // are not LSL_Integers.
+                        else if (plist[i] is int)
+                            result[i] = plist[i];
                         else if (plist[i] is LSL_Float)
                             result[i] = (float)(LSL_Float)plist[i];
                         else if (plist[i] is LSL_Key)
                             result[i] = new UUID((LSL_Key)plist[i]);
                         else if (plist[i] is LSL_Rotation)
-                        {
-                            result[i] = (OpenMetaverse.Quaternion)(
-                                (LSL_Rotation)plist[i]);
-                        }
+                            result[i] = (Quaternion)((LSL_Rotation)plist[i]);
                         else if (plist[i] is LSL_Vector)
-                        {
-                            result[i] = (OpenMetaverse.Vector3)(
-                                (LSL_Vector)plist[i]);
-                        }
+                            result[i] = (Vector3)((LSL_Vector)plist[i]);
                         else
                             MODError(String.Format("{0}: unknown LSL list element type", fname));
                     }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 29bc163a19..828288d02e 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -210,7 +210,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         internal void OSSLError(string msg)
         {
-            throw new Exception("OSSL Runtime Error: " + msg);
+            throw new ScriptException("OSSL Runtime Error: " + msg);
         }
 
         /// <summary>
@@ -1780,18 +1780,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         protected string LoadNotecard(string notecardNameOrUuid)
         {
             UUID assetID = CacheNotecard(notecardNameOrUuid);
-            StringBuilder notecardData = new StringBuilder();
 
-            for (int count = 0; count < NotecardCache.GetLines(assetID); count++)
+            if (assetID != UUID.Zero)
             {
-                string line = NotecardCache.GetLine(assetID, count) + "\n";
-
-//                m_log.DebugFormat("[OSSL]: From notecard {0} loading line {1}", notecardNameOrUuid, line);
-
-                notecardData.Append(line);
+                StringBuilder notecardData = new StringBuilder();
+    
+                for (int count = 0; count < NotecardCache.GetLines(assetID); count++)
+                {
+                    string line = NotecardCache.GetLine(assetID, count) + "\n";
+    
+    //                m_log.DebugFormat("[OSSL]: From notecard {0} loading line {1}", notecardNameOrUuid, line);
+    
+                    notecardData.Append(line);
+                }
+    
+                return notecardData.ToString();
             }
 
-            return notecardData.ToString();
+            return null;
         }
 
         /// <summary>
@@ -2340,11 +2346,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         appearance = new AvatarAppearance();
                         appearance.Unpack(appearanceOsd);
                     }
+                    else
+                    {
+                        OSSLError(string.Format("osNpcCreate: Notecard reference '{0}' not found.", notecard));
+                    }
                 }
 
-                if (appearance == null)
-                    return new LSL_Key(UUID.Zero.ToString());
-
                 UUID ownerID = UUID.Zero;
                 if (owned)
                     ownerID = m_host.OwnerID;
@@ -2407,6 +2414,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return;
 
                 string appearanceSerialized = LoadNotecard(notecard);
+
+                if (appearanceSerialized == null)
+                    OSSLError(string.Format("osNpcCreate: Notecard reference '{0}' not found.", notecard));
+
                 OSDMap appearanceOsd = (OSDMap)OSDParser.DeserializeLLSDXml(appearanceSerialized);
 //                OSD a = OSDParser.DeserializeLLSDXml(appearanceSerialized);
 //                Console.WriteLine("appearanceSerialized {0}", appearanceSerialized);
@@ -3636,5 +3647,68 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             DropAttachmentAt(false, pos, rot);
         }
+
+        public LSL_Integer osListenRegex(int channelID, string name, string ID, string msg, int regexBitfield)
+        {
+            CheckThreatLevel(ThreatLevel.Low, "osListenRegex");
+            m_host.AddScriptLPS(1);
+            UUID keyID;
+            UUID.TryParse(ID, out keyID);
+
+            // if we want the name to be used as a regular expression, ensure it is valid first.
+            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_NAME) == ScriptBaseClass.OS_LISTEN_REGEX_NAME)
+            {
+                try
+                {
+                    Regex.IsMatch("", name);
+                }
+                catch (Exception)
+                {
+                    OSSLShoutError("Name regex is invalid.");
+                    return -1;
+                }
+            }
+
+            // if we want the msg to be used as a regular expression, ensure it is valid first.
+            if ((regexBitfield & ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE) == ScriptBaseClass.OS_LISTEN_REGEX_MESSAGE)
+            {
+                try
+                {
+                    Regex.IsMatch("", msg);
+                }
+                catch (Exception)
+                {
+                    OSSLShoutError("Message regex is invalid.");
+                    return -1;
+                }
+            }
+
+            IWorldComm wComm = m_ScriptEngine.World.RequestModuleInterface<IWorldComm>();
+            return (wComm == null) ? -1 : wComm.Listen(
+                m_host.LocalId,
+                m_item.ItemID,
+                m_host.UUID,
+                channelID,
+                name,
+                keyID,
+                msg,
+                regexBitfield
+            );
+        }
+
+        public LSL_Integer osRegexIsMatch(string input, string pattern)
+        {
+            CheckThreatLevel(ThreatLevel.Low, "osRegexIsMatch");
+            m_host.AddScriptLPS(1);
+            try
+            {
+                return Regex.IsMatch(input, pattern) ? 1 : 0;
+            }
+            catch (Exception)
+            {
+                OSSLShoutError("Possible invalid regular expression detected.");
+                return 0;
+            }
+        }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index 93188c9ec8..cdd9ea85a8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -418,5 +418,29 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         /// <param name="pos"></param>
         /// <param name="rot"></param>
         void osForceDropAttachmentAt(vector pos, rotation rot);
+
+        /// <summary>
+        /// Identical to llListen except for a bitfield which indicates which
+        /// string parameters should be parsed as regex patterns.
+        /// </summary>
+        /// <param name="channelID"></param>
+        /// <param name="name"></param>
+        /// <param name="ID"></param>
+        /// <param name="msg"></param>
+        /// <param name="regexBitfield">
+        /// OS_LISTEN_REGEX_NAME
+        /// OS_LISTEN_REGEX_MESSAGE
+        /// </param>
+        /// <returns></returns>
+        LSL_Integer osListenRegex(int channelID, string name, string ID,
+                string msg, int regexBitfield);
+
+        /// <summary>
+        /// Wraps to bool Regex.IsMatch(string input, string pattern)
+        /// </summary>
+        /// <param name="input">string to test for match</param>
+        /// <param name="regex">string to use as pattern</param>
+        /// <returns>boolean</returns>
+        LSL_Integer osRegexIsMatch(string input, string pattern);
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index 62bd6b81b9..880841b5d9 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -716,5 +716,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public static readonly LSLInteger RCERR_UNKNOWN = -1;        
         public static readonly LSLInteger RCERR_SIM_PERF_LOW = -2;
         public static readonly LSLInteger RCERR_CAST_TIME_EXCEEDED = 3;
+
+        /// <summary>
+        /// process name parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_NAME = 0x1;
+
+        /// <summary>
+        /// process message parameter as regex
+        /// </summary>
+        public const int OS_LISTEN_REGEX_MESSAGE = 0x2;
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
index dee1b28cca..afa9ae0431 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs
@@ -992,5 +992,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             m_OSSL_Functions.osForceDropAttachmentAt(pos, rot);
         }
+
+        public LSL_Integer osListenRegex(int channelID, string name, string ID, string msg, int regexBitfield)
+        {
+            return m_OSSL_Functions.osListenRegex(channelID, name, ID, msg, regexBitfield);
+        }
+
+        public LSL_Integer osRegexIsMatch(string input, string pattern)
+        {
+            return m_OSSL_Functions.osRegexIsMatch(input, pattern);
+        }
     }
 }
diff --git a/OpenSim/Region/ScriptEngine/Shared/ScriptException.cs b/OpenSim/Region/ScriptEngine/Shared/ScriptException.cs
new file mode 100644
index 0000000000..ae67fc5585
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/ScriptException.cs
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+
+namespace OpenSim.Region.ScriptEngine.Shared
+{
+    public class ScriptException : Exception
+    {
+        public ScriptException() : base() {}
+
+        public ScriptException(string message) : base(message) {}
+
+        public ScriptException(string message, Exception innerException) : base(message, innerException) {}
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
index c8718d9603..c40179456d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiAppearanceTest.cs
@@ -75,76 +75,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
             m_engine.AddRegion(m_scene);
         }
 
-        /// <summary>
-        /// Test creation of an NPC where the appearance data comes from a notecard
-        /// </summary>
-        [Test]
-        public void TestOsNpcCreateUsingAppearanceFromNotecard()
-        {
-            TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
-
-            // Store an avatar with a different height from default in a notecard.
-            UUID userId = TestHelpers.ParseTail(0x1);
-            float newHeight = 1.9f;
-
-            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
-            sp.Appearance.AvatarHeight = newHeight;
-            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
-            SceneObjectPart part = so.RootPart;
-            m_scene.AddSceneObject(so);
-
-            OSSL_Api osslApi = new OSSL_Api();
-            osslApi.Initialize(m_engine, part, null);
-
-            string notecardName = "appearanceNc";
-            osslApi.osOwnerSaveAppearance(notecardName);
-
-            // Try creating a bot using the appearance in the notecard.
-            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), notecardName);
-            Assert.That(npcRaw, Is.Not.Null);
-
-            UUID npcId = new UUID(npcRaw);
-            ScenePresence npc = m_scene.GetScenePresence(npcId);
-            Assert.That(npc, Is.Not.Null);
-            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
-        }
-
-        /// <summary>
-        /// Test creation of an NPC where the appearance data comes from an avatar already in the region.
-        /// </summary>
-        [Test]
-        public void TestOsNpcCreateUsingAppearanceFromAvatar()
-        {
-            TestHelpers.InMethod();
-//            TestHelpers.EnableLogging();
-
-            // Store an avatar with a different height from default in a notecard.
-            UUID userId = TestHelpers.ParseTail(0x1);
-            float newHeight = 1.9f;
-
-            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
-            sp.Appearance.AvatarHeight = newHeight;
-            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
-            SceneObjectPart part = so.RootPart;
-            m_scene.AddSceneObject(so);
-
-            OSSL_Api osslApi = new OSSL_Api();
-            osslApi.Initialize(m_engine, part, null);
-
-            string notecardName = "appearanceNc";
-            osslApi.osOwnerSaveAppearance(notecardName);
-
-            // Try creating a bot using the existing avatar's appearance
-            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), sp.UUID.ToString());
-            Assert.That(npcRaw, Is.Not.Null);
-
-            UUID npcId = new UUID(npcRaw);
-            ScenePresence npc = m_scene.GetScenePresence(npcId);
-            Assert.That(npc, Is.Not.Null);
-            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
-        }
-
         [Test]
         public void TestOsOwnerSaveAppearance()
         {
diff --git a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
index 25679a65c0..b49bcc2000 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Tests/OSSL_ApiNpcTests.cs
@@ -36,6 +36,7 @@ using OpenMetaverse;
 using OpenMetaverse.Assets;
 using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Avatar.Attachments;
 using OpenSim.Region.CoreModules.Avatar.AvatarFactory;
 using OpenSim.Region.OptionalModules.World.NPC;
 using OpenSim.Region.Framework.Scenes;
@@ -71,13 +72,193 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
             config.Set("Enabled", "true");
 
             m_scene = new SceneHelpers().SetupScene();
-            SceneHelpers.SetupSceneModules(m_scene, initConfigSource, new AvatarFactoryModule(), new NPCModule());
+            SceneHelpers.SetupSceneModules(
+                m_scene, initConfigSource, new AvatarFactoryModule(), new AttachmentsModule(), new NPCModule());
 
             m_engine = new XEngine.XEngine();
             m_engine.Initialise(initConfigSource);
             m_engine.AddRegion(m_scene);
         }
 
+        /// <summary>
+        /// Test creation of an NPC where the appearance data comes from a notecard
+        /// </summary>
+        [Test]
+        public void TestOsNpcCreateUsingAppearanceFromNotecard()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float newHeight = 1.9f;
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = newHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            string notecardName = "appearanceNc";
+            osslApi.osOwnerSaveAppearance(notecardName);
+
+            // Try creating a bot using the appearance in the notecard.
+            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), notecardName);
+            Assert.That(npcRaw, Is.Not.Null);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
+        }
+
+        [Test]
+        public void TestOsNpcCreateNotExistingNotecard()
+        {
+            TestHelpers.InMethod();
+
+            UUID userId = TestHelpers.ParseTail(0x1);
+
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, so.RootPart, null);
+
+            string npcRaw;
+            bool gotExpectedException = false;
+            try
+            {
+                npcRaw
+                    = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), "not existing notecard name");
+            }
+            catch (ScriptException)
+            {
+                gotExpectedException = true;
+            }
+
+            Assert.That(gotExpectedException, Is.True);
+        }
+
+        /// <summary>
+        /// Test creation of an NPC where the appearance data comes from an avatar already in the region.
+        /// </summary>
+        [Test]
+        public void TestOsNpcCreateUsingAppearanceFromAvatar()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float newHeight = 1.9f;
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = newHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            string notecardName = "appearanceNc";
+            osslApi.osOwnerSaveAppearance(notecardName);
+
+            // Try creating a bot using the existing avatar's appearance
+            string npcRaw = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), sp.UUID.ToString());
+            Assert.That(npcRaw, Is.Not.Null);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(newHeight));
+        }
+
+        [Test]
+        public void TestOsNpcLoadAppearance()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float firstHeight = 1.9f;
+            float secondHeight = 2.1f;
+            string firstAppearanceNcName = "appearanceNc1";
+            string secondAppearanceNcName = "appearanceNc2";
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = firstHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            osslApi.osOwnerSaveAppearance(firstAppearanceNcName);
+
+            string npcRaw
+                = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), firstAppearanceNcName);
+
+            // Create a second appearance notecard with a different height
+            sp.Appearance.AvatarHeight = secondHeight;
+            osslApi.osOwnerSaveAppearance(secondAppearanceNcName);
+
+            osslApi.osNpcLoadAppearance(npcRaw, secondAppearanceNcName);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(secondHeight));
+        }
+
+        [Test]
+        public void TestOsNpcLoadAppearanceNotExistingNotecard()
+        {
+            TestHelpers.InMethod();
+
+            // Store an avatar with a different height from default in a notecard.
+            UUID userId = TestHelpers.ParseTail(0x1);
+            float firstHeight = 1.9f;
+            float secondHeight = 2.1f;
+            string firstAppearanceNcName = "appearanceNc1";
+            string secondAppearanceNcName = "appearanceNc2";
+
+            ScenePresence sp = SceneHelpers.AddScenePresence(m_scene, userId);
+            sp.Appearance.AvatarHeight = firstHeight;
+            SceneObjectGroup so = SceneHelpers.CreateSceneObject(1, userId, 0x10);
+            SceneObjectPart part = so.RootPart;
+            m_scene.AddSceneObject(so);
+
+            OSSL_Api osslApi = new OSSL_Api();
+            osslApi.Initialize(m_engine, part, null);
+
+            osslApi.osOwnerSaveAppearance(firstAppearanceNcName);
+
+            string npcRaw
+                = osslApi.osNpcCreate("Jane", "Doe", new LSL_Types.Vector3(128, 128, 128), firstAppearanceNcName);
+
+            bool gotExpectedException = false;
+            try
+            {
+                osslApi.osNpcLoadAppearance(npcRaw, secondAppearanceNcName);
+            }
+            catch (ScriptException)
+            {
+                gotExpectedException = true;
+            }
+
+            Assert.That(gotExpectedException, Is.True);
+
+            UUID npcId = new UUID(npcRaw);
+            ScenePresence npc = m_scene.GetScenePresence(npcId);
+            Assert.That(npc, Is.Not.Null);
+            Assert.That(npc.Appearance.AvatarHeight, Is.EqualTo(firstHeight));
+        }
+
         /// <summary>
         /// Test removal of an owned NPC.
         /// </summary>
@@ -85,7 +266,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Tests
         public void TestOsNpcRemoveOwned()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
 
             // Store an avatar with a different height from default in a notecard.
             UUID userId = TestHelpers.ParseTail(0x1);
diff --git a/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs b/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
index 46b0c672e2..4123f491bb 100644
--- a/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
+++ b/OpenSim/Server/Handlers/Asset/AssetServerConnector.cs
@@ -141,6 +141,9 @@ namespace OpenSim.Server.Handlers.Asset
             }
             
             string fileName = rawAssetId;
+
+            if (!ConsoleUtil.CheckFileDoesNotExist(MainConsole.Instance, fileName))
+                return;
             
             using (FileStream fs = new FileStream(fileName, FileMode.CreateNew))
             {
diff --git a/OpenSim/Tests/Common/Mock/TestClient.cs b/OpenSim/Tests/Common/Mock/TestClient.cs
index bb8b9358c0..dde37ab7a3 100644
--- a/OpenSim/Tests/Common/Mock/TestClient.cs
+++ b/OpenSim/Tests/Common/Mock/TestClient.cs
@@ -528,13 +528,9 @@ namespace OpenSim.Tests.Common.Mock
         {
         }
 
-        public virtual void SendChatMessage(string message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
-        {
-        }
-
-        public virtual void SendChatMessage(byte[] message, byte type, Vector3 fromPos, string fromName,
-                                            UUID fromAgentID, byte source, byte audible)
+        public virtual void SendChatMessage(
+            string message, byte type, Vector3 fromPos, string fromName,
+            UUID fromAgentID, UUID ownerID, byte source, byte audible)
         {
         }
 
diff --git a/bin/assets/CollisionSoundsAssetSet/CollisionSoundsAssetSet.xml b/bin/assets/CollisionSoundsAssetSet/CollisionSoundsAssetSet.xml
index 7498ae0af8..b570c554be 100644
--- a/bin/assets/CollisionSoundsAssetSet/CollisionSoundsAssetSet.xml
+++ b/bin/assets/CollisionSoundsAssetSet/CollisionSoundsAssetSet.xml
@@ -303,37 +303,37 @@
     <Key Name="fileName" Value="snd_TerrainStone.ogg" />
   </Section>
   <Section Name="snd_TerrainMetal">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807201c9a66" />
     <Key Name="name" Value="snd_TerrainMetal" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainMetal.ogg" />
   </Section>
   <Section Name="snd_TerrainGlass">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807202c9a66" />
     <Key Name="name" Value="snd_TerrainGlass" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainGlass.ogg" />
   </Section>
   <Section Name="snd_TerrainWood">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807203c9a66" />
     <Key Name="name" Value="snd_TerrainWood" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainWood.ogg" />
   </Section>
   <Section Name="snd_TerrainFlesh">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807204c9a66" />
     <Key Name="name" Value="snd_TerrainFlesh" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainFlesh.ogg" />
   </Section>
   <Section Name="snd_TerrainPlastic">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807205c9a66" />
     <Key Name="name" Value="snd_TerrainPlastic" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainPlastic.ogg" />
   </Section>
   <Section Name="snd_TerrainRubber">
-    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807200c9a66" />
+    <Key Name="assetID" Value="be7295c0-a158-11e1-b3dd-0807206c9a66" />
     <Key Name="name" Value="snd_TerrainRubber" />
     <Key Name="assetType" Value="1" />
     <Key Name="fileName" Value="snd_TerrainRubber.ogg" />
diff --git a/bin/lib32/BulletSim.dll b/bin/lib32/BulletSim.dll
index f976efe72b..fbc83e64c7 100755
Binary files a/bin/lib32/BulletSim.dll and b/bin/lib32/BulletSim.dll differ
diff --git a/bin/lib32/libBulletSim.so b/bin/lib32/libBulletSim.so
index a00bc3ab01..65d3805bb3 100755
Binary files a/bin/lib32/libBulletSim.so and b/bin/lib32/libBulletSim.so differ
diff --git a/bin/lib64/BulletSim.dll b/bin/lib64/BulletSim.dll
index acaa9c875f..936368a4d9 100755
Binary files a/bin/lib64/BulletSim.dll and b/bin/lib64/BulletSim.dll differ
diff --git a/bin/lib64/libBulletSim.so b/bin/lib64/libBulletSim.so
index 996ea21576..82fbad6966 100755
Binary files a/bin/lib64/libBulletSim.so and b/bin/lib64/libBulletSim.so differ