Create launch-two-fallout4.bat

launch-two-fallout4.bat

@@ -0,0 +1,74 @@
+@echo off
+setlocal EnableExtensions
+
+set "F4SE_DIR=D:\SteamLibrary\steamapps\common\Fallout 4 377160"
+set "F4SE_EXE=%F4SE_DIR%\f4se_loader.exe"
+set "SANDBOXIE_DIR=C:\Program Files\Sandboxie-Plus"
+set "SANDBOXIE_START=%SANDBOXIE_DIR%\Start.exe"
+set "SANDBOXIE_INI=%SANDBOXIE_DIR%\SbieIni.exe"
+set "SANDBOX_NAME=Fallout4Client2"
+set "START_DELAY_SECONDS=8"
+
+if not exist "%F4SE_EXE%" (
+    echo Could not find f4se_loader.exe at:
+    echo "%F4SE_EXE%"
+    echo.
+    echo Update F4SE_DIR in this script if Fallout 4 was moved.
+    pause
+    exit /b 1
+)
+
+if not exist "%SANDBOXIE_START%" (
+    echo Fallout 4 allows only one normal instance at a time.
+    echo Install Sandboxie-Plus, then run this script again.
+    echo.
+    echo Expected Sandboxie launcher:
+    echo "%SANDBOXIE_START%"
+    pause
+    exit /b 1
+)
+
+call :EnsureSandbox
+if errorlevel 1 (
+    echo Failed to create or configure sandbox "%SANDBOX_NAME%".
+    pause
+    exit /b 1
+)
+
+echo Starting Fallout 4 instance 1...
+start "Fallout 4 Instance 1" /D "%F4SE_DIR%" "%F4SE_EXE%"
+
+echo Waiting %START_DELAY_SECONDS% seconds before starting instance 2...
+timeout /t %START_DELAY_SECONDS% /nobreak >nul
+
+echo Starting Fallout 4 instance 2 in Sandboxie box "%SANDBOX_NAME%"...
+pushd "%F4SE_DIR%"
+"%SANDBOXIE_START%" /box:%SANDBOX_NAME% "%F4SE_EXE%"
+set "LAUNCH_ERROR=%ERRORLEVEL%"
+popd
+
+if not "%LAUNCH_ERROR%"=="0" (
+    echo Sandboxie returned error code %LAUNCH_ERROR%.
+    pause
+    exit /b %LAUNCH_ERROR%
+)
+
+echo Done.
+endlocal
+exit /b 0
+
+:EnsureSandbox
+"%SANDBOXIE_INI%" query %SANDBOX_NAME% Enabled 2>nul | findstr /i "y" >nul
+if not errorlevel 1 goto :ReloadSandboxConfig
+
+echo Creating Sandboxie box "%SANDBOX_NAME%"...
+"%SANDBOXIE_INI%" set %SANBOX_NAME% Enabled y
+if errorlevel 1 exit /b 1
+"%SANDBOXIE_INI%" set %SANBOX_NAME% ConfigLevel 7
+if errorlevel 1 exit /b 1
+"%SANDBOXIE_INI%" append %SANBOX_NAME% OpenFilePath "%F4SE_DIR%\*"
+if errorlevel 1 exit /b 1
+
+:ReloadSandboxConfig
+"%SANDBOXIE_START%" /reload >nul
+exit /b 0