diff --git a/win_build.bat b/win_build.bat
index 25508f5b..154c91cf 100644
--- a/win_build.bat
+++ b/win_build.bat
@@ -6,6 +6,38 @@ set "UE_PATH=C:\Program Files\UE_5.5"
 set "PROJECT_PATH=%~dp0"
 set "UAT_PATH=%UE_PATH%\Engine\Build\BatchFiles\RunUAT.bat"
 
+
+:: Check if MuJoCo DLL exists in bin directory
+if not exist "%MUJOCO_BIN_PATH%\mujoco.dll" (
+    echo Error: MuJoCo DLL not found at %MUJOCO_BIN_PATH%\mujoco.dll
+    echo Please ensure the MuJoCo DLL is properly built and placed in the correct location.
+    pause
+    exit /b 1
+)
+
+:: Copy MuJoCo DLL to the plugin binaries directory if it doesn't exist there
+if not exist "%MUJOCO_DLL_PATH%\mujoco.dll" (
+    echo Copying MuJoCo DLL to plugin binaries directory...
+    copy "%MUJOCO_BIN_PATH%\mujoco.dll" "%MUJOCO_DLL_PATH%\"
+    if errorlevel 1 (
+        echo Failed to copy MuJoCo DLL
+        pause
+        exit /b 1
+    )
+)
+
+:: Add UE and MuJoCo paths to PATH environment variable
+set "PATH=%UE_PATH%\Engine\Binaries\Win64;%MUJOCO_DLL_PATH%;%MUJOCO_BIN_PATH%;%PATH%"
+
+:: Set the DLL search path for the current process
+set "PATH=%PATH%;%MUJOCO_DLL_PATH%;%MUJOCO_BIN_PATH%"
+
+:: Run the Unreal Editor
+:: echo Starting Unreal Editor...
+:: start "" "%UE_PATH%\Engine\Binaries\Win64\UnrealEditor.exe" "%PROJECT_PATH%LuckyWorldV2.uproject"
+
+endlocal 
+
 :: Build and package command
 "%UAT_PATH%" ^
     -ScriptsForProject="%PROJECT_PATH%LuckyWorldV2.uproject" ^