diff --git a/MengeCS/MengeCS.csproj b/MengeCS/MengeCS.csproj
index 4805f45..8fb9370 100644
--- a/MengeCS/MengeCS.csproj
+++ b/MengeCS/MengeCS.csproj
@@ -50,14 +50,13 @@
     <Compile Include="Vector2.cs" />
     <Compile Include="Vector3.cs" />
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="MengeCore.dll">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
-    <PreBuildEvent>xcopy /y /d "$(MengeDir)\MengeCore.dll" $(ProjectDir)</PreBuildEvent>
+    <PreBuildEvent>if "$(ConfigurationName)" == "Debug" (
+  xcopy /y /d "$(MengeDir)\MengeCore_d.dll" $(TargetDir)
+) ELSE (
+  xcopy /y /d "$(MengeDir)\MengeCore.dll" $(TargetDir)
+)</PreBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/MengeCS/MengeCore_d.dll b/MengeCS/MengeCore_d.dll
deleted file mode 100644
index 9a951cb..0000000
Binary files a/MengeCS/MengeCore_d.dll and /dev/null differ
diff --git a/MengeCS/Simulator.cs b/MengeCS/Simulator.cs
index 7e27fff..c2b908b 100644
--- a/MengeCS/Simulator.cs
+++ b/MengeCS/Simulator.cs
@@ -18,9 +18,9 @@ public Simulator() {
             _agents = new List<Agent>();
         }
 
-        public bool Initialize(String behaveXml, String sceneXml, String model)
+        public bool Initialize(String behaveXml, String sceneXml, String model, String pluginPath = null)
         {
-            if (MengeWrapper.InitSimulator(behaveXml, sceneXml, model, null))
+            if (MengeWrapper.InitSimulator(behaveXml, sceneXml, model, pluginPath))
             {
                 FindTriggers();
                 uint count = MengeWrapper.AgentCount();
diff --git a/MengeCSExe/MengeCSExe.csproj b/MengeCSExe/MengeCSExe.csproj
index 72e504b..d29bbd3 100644
--- a/MengeCSExe/MengeCSExe.csproj
+++ b/MengeCSExe/MengeCSExe.csproj
@@ -49,13 +49,14 @@
       <Name>MengeCS</Name>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="..\MengeCS\MengeCore.dll">
-      <Link>MengeCore.dll</Link>
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <PropertyGroup>
+    <PreBuildEvent>if "$(ConfigurationName)" == "Debug" (
+  xcopy /y /d "$(ProjectDir)..\MengeCS\bin\Debug\MengeCore_d.dll" $(TargetDir)
+) ELSE (
+  xcopy /y /d "$(ProjectDir)..\MengeCS\bin\Release\MengeCore.dll" $(TargetDir)
+)</PreBuildEvent>
+  </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">