diff --git a/OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs b/OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs
index c2b07fc594..b850227d0c 100644
--- a/OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs
+++ b/OpenSim/Region/ScriptEngine/DotNetEngine/ScriptEngine.cs
@@ -96,6 +96,9 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
             get { return "ScriptEngine.DotNetEngine"; }
         }
         
+        public event ScriptRemoved OnScriptRemoved;
+        public event ObjectRemoved OnObjectRemoved;
+
         public ScriptEngine()
         {
             // For logging, just need any instance, doesn't matter
diff --git a/OpenSim/Region/ScriptEngine/Interfaces/IScriptEngine.cs b/OpenSim/Region/ScriptEngine/Interfaces/IScriptEngine.cs
index 95a8530725..8da46f4cd9 100644
--- a/OpenSim/Region/ScriptEngine/Interfaces/IScriptEngine.cs
+++ b/OpenSim/Region/ScriptEngine/Interfaces/IScriptEngine.cs
@@ -41,6 +41,10 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
     /// An interface for a script API module to communicate with
     /// the engine it's running under
     /// </summary>
+
+    public delegate void ScriptRemoved(UUID script);
+    public delegate void ObjectRemoved(UUID prim);
+
     public interface IScriptEngine
     {
         /// <summary>
@@ -50,6 +54,9 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
 
         Scene World { get; }
 
+        event ScriptRemoved OnScriptRemoved;
+        event ObjectRemoved OnObjectRemoved;
+
         /// <summary>
         /// Post an event to a single script
         /// </summary>
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
index 162f323f96..10291849f0 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
@@ -527,8 +527,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
                     break;
                 case enumCompileType.cs:
                 case enumCompileType.lsl:
-                    results = CScodeProvider.CompileAssemblyFromSource(
-                            parameters, Script);
+                    lock (CScodeProvider)
+                    {
+                        results = CScodeProvider.CompileAssemblyFromSource(
+                                parameters, Script);
+                    }
                     break;
                 case enumCompileType.js:
                     results = JScodeProvider.CompileAssemblyFromSource(
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index 09480f6c35..357ee32881 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -142,6 +142,9 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             get { return m_ScriptConfig; }
         }
 
+        public event ScriptRemoved OnScriptRemoved;
+        public event ObjectRemoved OnObjectRemoved;
+
         //
         // IRegionModule functions
         //
@@ -702,6 +705,8 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 if (part != null)
                     part.RemoveScriptEvents(itemID);
 
+                bool objectRemoved = false;
+
                 lock (m_PrimObjects)
                 {
                     // Remove the script from it's prim
@@ -715,6 +720,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                         if (m_PrimObjects[localID].Count == 0)
                         {
                             m_PrimObjects.Remove(localID);
+                            objectRemoved = true;
                         }
                     }
                 }
@@ -731,8 +737,16 @@ namespace OpenSim.Region.ScriptEngine.XEngine
 
                 instance = null;
 
+                ObjectRemoved handlerObjectRemoved = OnObjectRemoved;
+                if (handlerObjectRemoved != null)
+                    handlerObjectRemoved(part.UUID);
+
                 CleanAssemblies();
             }
+
+            ScriptRemoved handlerScriptRemoved = OnScriptRemoved;
+            if (handlerScriptRemoved != null)
+                handlerScriptRemoved(itemID);
         }
 
         public void OnScriptReset(uint localID, UUID itemID)