diff --git a/OpenSim/Framework/Communications/Capabilities/LLSD.cs b/OpenSim/Framework/Communications/Capabilities/LLSD.cs
index 44c4a05bee..e754256109 100644
--- a/OpenSim/Framework/Communications/Capabilities/LLSD.cs
+++ b/OpenSim/Framework/Communications/Capabilities/LLSD.cs
@@ -561,7 +561,7 @@ namespace OpenSim.Framework.Communications.Capabilities
                         endPos = FindEnd(llsd, 1);
 
                         if (Double.TryParse(llsd.Substring(1, endPos - 1), NumberStyles.Float,
-                                            Helpers.EnUsCulture.NumberFormat, out value))
+                                            Utils.EnUsCulture.NumberFormat, out value))
                             return value;
                         else
                             throw new LLSDParseException("Failed to parse double value type");
diff --git a/OpenSim/Region/Environment/Modules/Agent/TextureDownload/TextureNotFoundSender.cs b/OpenSim/Region/Environment/Modules/Agent/TextureDownload/TextureNotFoundSender.cs
index c06406470f..044ee765c9 100644
--- a/OpenSim/Region/Environment/Modules/Agent/TextureDownload/TextureNotFoundSender.cs
+++ b/OpenSim/Region/Environment/Modules/Agent/TextureDownload/TextureNotFoundSender.cs
@@ -28,7 +28,6 @@
 using System.Reflection;
 using log4net;
 using OpenMetaverse;
-using OpenMetaverse.Packets;
 using OpenSim.Framework;
 using OpenSim.Region.Environment.Interfaces;
 
diff --git a/OpenSim/Region/Environment/Modules/Agent/TextureSender/TextureSender.cs b/OpenSim/Region/Environment/Modules/Agent/TextureSender/TextureSender.cs
index b1771037e3..65ca8544fd 100644
--- a/OpenSim/Region/Environment/Modules/Agent/TextureSender/TextureSender.cs
+++ b/OpenSim/Region/Environment/Modules/Agent/TextureSender/TextureSender.cs
@@ -27,7 +27,6 @@
 
 using System;
 using System.Reflection;
-using OpenMetaverse.Packets;
 using log4net;
 using OpenSim.Framework;
 using OpenSim.Region.Environment.Interfaces;
@@ -198,7 +197,7 @@ namespace OpenSim.Region.Environment.Modules.Agent.TextureSender
         // See ITextureSender
         public bool SendTexturePacket()
         {
-            if (!m_cancel && (sendFirstPacket || download.CurrentPacket <= download.StopPacket))
+            if (download != null && !m_cancel && (sendFirstPacket || download.CurrentPacket <= download.StopPacket))
             {
                 SendPacket();
                 return false;
diff --git a/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs b/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
index daff7609d0..989f36ce1a 100644
--- a/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
+++ b/OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs
@@ -29,7 +29,6 @@ using System.Collections;
 using System.Collections.Generic;
 using System.Reflection;
 using OpenMetaverse;
-using OpenMetaverse.Packets;
 using log4net;
 using Nini.Config;
 using Nwc.XmlRpc;
diff --git a/OpenSim/Region/Environment/Scenes/Scene.Inventory.cs b/OpenSim/Region/Environment/Scenes/Scene.Inventory.cs
index e46b13c4a3..5bfa1eba68 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.Inventory.cs
@@ -31,7 +31,6 @@ using System.Reflection;
 using System.Text;
 using System.Timers;
 using OpenMetaverse;
-using OpenMetaverse.Packets;
 using log4net;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications.Cache;
diff --git a/bin/OpenMetaverse.dll b/bin/OpenMetaverse.dll
index 4c68e49ab9..be1cd40d7b 100644
Binary files a/bin/OpenMetaverse.dll and b/bin/OpenMetaverse.dll differ
diff --git a/bin/OpenMetaverseTypes.dll b/bin/OpenMetaverseTypes.dll
index 836c95e202..21004df6e0 100644
Binary files a/bin/OpenMetaverseTypes.dll and b/bin/OpenMetaverseTypes.dll differ
diff --git a/bin/openjpeg-dotnet.dll b/bin/openjpeg-dotnet.dll
index 50a6b454f1..d5f71c10ca 100644
Binary files a/bin/openjpeg-dotnet.dll and b/bin/openjpeg-dotnet.dll differ
diff --git a/prebuild.xml b/prebuild.xml
index 9d66e9b688..f5467df819 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -461,7 +461,7 @@
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Framework.Console"/>
       <Reference name="OpenSim.Framework.Statistics"/>
-      <Reference name="OpenMetaverse.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="OpenMetaverseTypes.dll"/>
       <Reference name="XMLRPC.dll"/>
       <Reference name="log4net.dll"/>
@@ -706,7 +706,7 @@
       <Reference name="System" localCopy="false"/>
       <Reference name="System.Runtime.Remoting"/>
       <Reference name="OpenSim.Framework"/>
-      <Reference name="OpenMetaverse.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="OpenMetaverseTypes.dll"/>
 
       <Files>
@@ -739,6 +739,8 @@
       <Reference name="OpenSim.Framework.Statistics"/>
       <Reference name="OpenSim.Region.Interfaces"/>
       <Reference name="OpenMetaverseTypes.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
+      <!-- FIXME: The OpenMetaverse.dll reference can be dropped when the TransferRequestPacket reference is removed from the code -->
       <Reference name="OpenMetaverse.dll"/>
       <Reference name="Nini.dll" />
       <Reference name="XMLRPC.dll"/>
@@ -832,6 +834,7 @@
       <Reference name="System.Runtime.Remoting"/>
       <Reference name="System.Web"/>
       <Reference name="OpenMetaverseTypes.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="OpenMetaverse.dll"/>
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Data" />
@@ -1137,6 +1140,7 @@
       <Reference name="System.Xml"/>
       <Reference name="Mono.Addins.dll" />
       <Reference name="OpenMetaverseTypes.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="OpenMetaverse.dll"/>
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Data"/>
@@ -1942,7 +1946,7 @@
       <Reference name="System.Web" localCopy="false"/>
       <Reference name="System.Xml" localCopy="false"/>
       <Reference name="OpenMetaverseTypes.dll"/>
-      <Reference name="OpenMetaverse.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="OpenSim" />
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Framework.Communications"/>
@@ -1983,7 +1987,7 @@
       <Reference name="System.Xml" localCopy="false"/>
       <Reference name="System.Runtime.Remoting" localCopy="false"/>
       <Reference name="OpenMetaverseTypes.dll"/>
-      <Reference name="OpenMetaverse.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="RAIL.dll"/>
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Framework.Console"/>
@@ -2117,7 +2121,7 @@
       <Reference name="OpenSim.Framework.Statistics"/>
       <Reference name="OpenSim.Grid.Communications.OGS1"/>
       <Reference name="OpenMetaverseTypes.dll"/>
-      <Reference name="OpenMetaverse.dll"/>
+      <Reference name="OpenMetaverse.StructuredData.dll"/>
       <Reference name="XMLRPC.dll"/>
       <Reference name="log4net.dll"/>