diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
index de5f92df4a..52a34a63c6 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
@@ -469,7 +469,11 @@ namespace SecondLife
             scriptCompileCounter++;
             try
             {
-                File.Delete(assembly);
+                if (File.Exists(assembly))
+                {
+                    File.SetAttributes(assembly, FileAttributes.Normal);
+                    File.Delete(assembly);
+                }
             }
             catch (Exception e) // NOTLEGIT - Should be just FileIOException
             {