diff --git a/OpenSim/Framework/Communications/LoginService.cs b/OpenSim/Framework/Communications/LoginService.cs
index 4c33bd8372..e7441b8ec2 100644
--- a/OpenSim/Framework/Communications/LoginService.cs
+++ b/OpenSim/Framework/Communications/LoginService.cs
@@ -178,7 +178,6 @@ namespace OpenSim.Framework.UserManagement
             {
                 m_loginMutex.ReleaseMutex();
             }
-            return null;
         }
 
         /// <summary>
diff --git a/OpenSim/Framework/Console/LogBase.cs b/OpenSim/Framework/Console/LogBase.cs
index ec3c5bc720..6c97768360 100644
--- a/OpenSim/Framework/Console/LogBase.cs
+++ b/OpenSim/Framework/Console/LogBase.cs
@@ -244,7 +244,7 @@ namespace OpenSim.Framework.Console
                     Log.Flush();
                 }
 
-                catch (FormatException FE)
+                catch (FormatException)
                 {
                     System.Console.WriteLine(args);
                 }
diff --git a/OpenSim/Grid/UserServer/UserLoginService.cs b/OpenSim/Grid/UserServer/UserLoginService.cs
index 13f8350a13..ef4b82de97 100644
--- a/OpenSim/Grid/UserServer/UserLoginService.cs
+++ b/OpenSim/Grid/UserServer/UserLoginService.cs
@@ -118,7 +118,7 @@ namespace OpenSim.Grid.UserServer
                 XmlRpcRequest GridReq = new XmlRpcRequest("expect_user", SendParams);
                 XmlRpcResponse GridResp = GridReq.Send(SimInfo.httpServerURI, 6000);
             }
-            catch (Exception e)
+            catch (Exception)
             {
                 tryDefault = true;
             }
diff --git a/OpenSim/Region/ClientStack/UDPServer.cs b/OpenSim/Region/ClientStack/UDPServer.cs
index 8f377c1a83..b0586a3538 100644
--- a/OpenSim/Region/ClientStack/UDPServer.cs
+++ b/OpenSim/Region/ClientStack/UDPServer.cs
@@ -125,7 +125,7 @@ namespace OpenSim.Region.ClientStack
 
                 return;
             }
-            catch (System.ObjectDisposedException od)
+            catch (System.ObjectDisposedException)
             {
                 return;
             }
diff --git a/OpenSim/Region/Communications/OGS1/OGS1GridServices.cs b/OpenSim/Region/Communications/OGS1/OGS1GridServices.cs
index 16e5d93907..f4e858bd3a 100644
--- a/OpenSim/Region/Communications/OGS1/OGS1GridServices.cs
+++ b/OpenSim/Region/Communications/OGS1/OGS1GridServices.cs
@@ -645,8 +645,6 @@ namespace OpenSim.Region.Communications.OGS1
                 MainLog.Instance.Debug(e.ToString());
                 return false;
             }
-            
-            return true;
         }
         /// <summary>
         /// 
@@ -857,7 +855,7 @@ namespace OpenSim.Region.Communications.OGS1
             {
                 return m_localBackend.IncomingChildAgent(regionHandle, agentData);
             }
-            catch (RemotingException e)
+            catch (RemotingException)
             {
                 //MainLog.Instance.Error("Remoting Error: Unable to connect to adjacent region.\n" + e.ToString());
                 return false;
diff --git a/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs b/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
index 9e1206bde2..b84115492e 100644
--- a/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
+++ b/OpenSim/Region/Communications/OGS1/OGS1UserServices.cs
@@ -165,7 +165,6 @@ namespace OpenSim.Region.Communications.OGS1
         public LLUUID AddUserProfile(string firstName, string lastName, string pass, uint regX, uint regY)
         {
             throw new Exception("The method or operation is not implemented.");
-            return LLUUID.Zero;
         }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Environment/Scenes/InnerScene.cs b/OpenSim/Region/Environment/Scenes/InnerScene.cs
index bdcd840906..cceaa14915 100644
--- a/OpenSim/Region/Environment/Scenes/InnerScene.cs
+++ b/OpenSim/Region/Environment/Scenes/InnerScene.cs
@@ -292,7 +292,6 @@ namespace OpenSim.Region.Environment.Scenes
         public EntityIntersection GetClosestIntersectingPrim(Ray hray)
         {
             // Primitive Ray Tracing
-            bool gothit = false;
             float closestDistance = 280f;
             EntityIntersection returnResult = new EntityIntersection();
             foreach (EntityBase ent in Entities.Values)
@@ -305,7 +304,6 @@ namespace OpenSim.Region.Environment.Scenes
                     {
                         if (result.distance < closestDistance)
                         {
-                            gothit = true;
                             closestDistance = result.distance;
                             returnResult = result;
                         }
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 8fc04c4f33..e671038c30 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -1068,7 +1068,7 @@ namespace OpenSim.Region.Environment.Scenes
             {
                 avatar.Close();
             }
-            catch (System.NullReferenceException NE)
+            catch (System.NullReferenceException)
             {
                 //We can safely ignore null reference exceptions.  It means the avatar are dead and cleaned up anyway.
 
diff --git a/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs b/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
index 99dafac961..543a4687b1 100644
--- a/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
@@ -956,7 +956,6 @@ namespace OpenSim.Region.Environment.Scenes
 
         public void UpdatePrimFlags(ushort type, bool inUse, byte[] data)
         {
-            bool hasPrim = false;
             bool usePhysics = false;
             bool IsTemporary = false;
             bool IsPhantom = false;
diff --git a/OpenSim/Region/Environment/Scenes/ScenePresence.cs b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
index 145e15ab3b..abfa2506a2 100644
--- a/OpenSim/Region/Environment/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
@@ -54,7 +54,6 @@ namespace OpenSim.Region.Environment.Scenes
         private uint m_requestedSitTargetID = 0;
         private LLVector3 m_requestedSitOffset = new LLVector3();
         private float m_sitAvatarHeight = 2.0f;
-        private bool m_oldColliding = true;
 
         private bool m_isTyping = false;
         private bool m_setAlwaysRun = false;
diff --git a/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/Server_API/LSL_BuiltIn_Commands.cs b/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/Server_API/LSL_BuiltIn_Commands.cs
index aa35c4caaa..e72f8f5f7d 100644
--- a/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/Server_API/LSL_BuiltIn_Commands.cs
+++ b/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/Server_API/LSL_BuiltIn_Commands.cs
@@ -222,7 +222,6 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine.Compiler
             LSL_Types.Quaternion a1 = new LSL_Types.Quaternion(0.0, 0.0, cz, cw);
             LSL_Types.Quaternion a2 = new LSL_Types.Quaternion(0.0, by, 0.0, bw);
             LSL_Types.Quaternion a3 = new LSL_Types.Quaternion(ax, 0.0, 0.0, aw);
-            LSL_Types.Quaternion a = new LSL_Types.Quaternion();
             //This multiplication doesnt compile, yet.            a = a1 * a2 * a3;
             LSL_Types.Quaternion b = new LSL_Types.Quaternion(ax*bw*cw + aw*by*cz,
                                                               aw*by*cw - ax*bw*cz, aw*bw*cz + ax*by*cw,