diff --git a/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs b/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
index 2183c1c4a7..34a4bfc1d7 100644
--- a/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
+++ b/OpenSim/Region/Framework/Interfaces/IScriptModuleComms.cs
@@ -54,7 +54,7 @@ namespace OpenSim.Region.Framework.Interfaces
         Type[] LookupTypeSignature(string fname);
         Type LookupReturnType(string fname);
 
-        object InvokeOperation(UUID scriptId, string fname, params object[] parms);
+        object InvokeOperation(UUID hostId, UUID scriptId, string fname, params object[] parms);
 
         /// <summary>
         /// Send a link_message event to an in-world script
diff --git a/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs b/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
index 0ec4025dc3..0605590e77 100644
--- a/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/ScriptModuleComms/ScriptModuleCommsModule.cs
@@ -130,10 +130,18 @@ namespace OpenSim.Region.CoreModules.Scripting.ScriptModuleComms
 
         public void RegisterScriptInvocation(object target, string meth)
         {
+            m_log.DebugFormat("[MODULE COMMANDS] Register method {0} from type {1}",meth,target.GetType().Name);
+            
+
             MethodInfo mi = target.GetType().GetMethod(meth,
                     BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
+            if (mi == null)
+            {
+                m_log.WarnFormat("[MODULE COMMANDS] Failed to register method {0}",meth);
+                return;
+            }
+            
             Type delegateType;
-
             var typeArgs = mi.GetParameters()
                     .Select(p => p.ParameterType)
                     .ToList();
@@ -153,13 +161,13 @@ namespace OpenSim.Region.CoreModules.Scripting.ScriptModuleComms
             lock (m_scriptInvocation)
             {
                 ParameterInfo[] parameters = fcall.Method.GetParameters ();
-                if (parameters.Length == 0) // Must have one UUID param
+                if (parameters.Length < 2) // Must have two UUID params
                     return;
 
-                // Hide the first parameter
-                Type[] parmTypes = new Type[parameters.Length - 1];
-                for (int i = 1 ; i < parameters.Length ; i++)
-                    parmTypes[i - 1] = parameters[i].ParameterType;
+                // Hide the first two parameters
+                Type[] parmTypes = new Type[parameters.Length - 2];
+                for (int i = 2 ; i < parameters.Length ; i++)
+                    parmTypes[i - 2] = parameters[i].ParameterType;
                 m_scriptInvocation[fcall.Method.Name] = new ScriptInvocationData(fcall.Method.Name, fcall, parmTypes, fcall.Method.ReturnType);
             }
         }
@@ -197,6 +205,8 @@ namespace OpenSim.Region.CoreModules.Scripting.ScriptModuleComms
                         return "modInvokeR";
                     else if (sid.ReturnType == typeof(object[]))
                         return "modInvokeL";
+
+                    m_log.WarnFormat("[MODULE COMMANDS] failed to find match for {0} with return type {1}",fname,sid.ReturnType.Name);
                 }
             }
 
@@ -239,9 +249,10 @@ namespace OpenSim.Region.CoreModules.Scripting.ScriptModuleComms
             return null;
         }
 
-        public object InvokeOperation(UUID scriptid, string fname, params object[] parms)
+        public object InvokeOperation(UUID hostid, UUID scriptid, string fname, params object[] parms)
         {
             List<object> olist = new List<object>();
+            olist.Add(hostid);
             olist.Add(scriptid);
             foreach (object o in parms)
                 olist.Add(o);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
index 1bcbcd3e1e..7c07e15fa3 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/MOD_Api.cs
@@ -122,6 +122,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <param name="fname">The name of the function to invoke</param>
         /// <param name="parms">List of parameters</param>
         /// <returns>string result of the invocation</returns>
+        public void modInvokeN(string fname, params object[] parms)
+        {
+            Type returntype = m_comms.LookupReturnType(fname);
+            if (returntype != typeof(string))
+                MODError(String.Format("return type mismatch for {0}",fname));
+
+            modInvoke(fname,parms);
+        }
+
         public LSL_String modInvokeS(string fname, params object[] parms)
         {
             Type returntype = m_comms.LookupReturnType(fname);
@@ -243,7 +252,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             // non-null but don't trust it completely
             try 
             {
-                object result = m_comms.InvokeOperation(m_itemID,fname,convertedParms);
+                object result = m_comms.InvokeOperation(m_host.UUID, m_itemID, fname, convertedParms);
                 if (result != null)
                     return result;
 
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IMOD_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IMOD_Api.cs
index d258f76841..aa78aaa6bb 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IMOD_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IMOD_Api.cs
@@ -41,6 +41,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
     public interface IMOD_Api
     {
         // Invocation functions
+        void modInvokeN(string fname, params object[] parms);
         LSL_String modInvokeS(string fname, params object[] parms);
         LSL_Integer modInvokeI(string fname, params object[] parms);
         LSL_Float modInvokeF(string fname, params object[] parms);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/MOD_Stub.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/MOD_Stub.cs
index e7a4b2b524..1c47138922 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/MOD_Stub.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/MOD_Stub.cs
@@ -62,6 +62,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
             m_MOD_Functions = (IMOD_Api)api;
         }
 
+        public void modInvokeN(string fname, params object[] parms)
+        {
+            m_MOD_Functions.modInvokeN(fname, parms);
+        }
+
         public LSL_String modInvokeS(string fname, params object[] parms)
         {
             return m_MOD_Functions.modInvokeS(fname, parms);