PING / Trace Route - Open Source - C# (C-sharp)

@echo off
cls
cd /d %~dp0..
if exist "%windir%\Microsoft.NET\Framework\v1.1.4322\csc.exe" (
    echo Compiling for .NET Framework v1.1
    echo.
    "%windir%\Microsoft.NET\Framework\v1.1.4322\csc.exe" /define:NET11 /t:exe /debug+ /out:test11.exe src\*.cs
    if errorlevel 1 pause & goto end
)
if exist "%windir%\Microsoft.NET\Framework\v2.0.50727\csc.exe" (
    echo Compiling for .NET Framework v2.0
    echo.
    "%windir%\Microsoft.NET\Framework\v2.0.50727\csc.exe" /define:NET20 /t:exe /debug+ /out:test20.exe src\*.cs
    if errorlevel 1 pause & goto end
)

if exist "%windir%\Microsoft.NET\Framework\v2.0.50727\csc.exe" (
    echo Running .NET Framework v1.1 version
    echo.
    test11.exe www.google.com
)
if exist "%windir%\Microsoft.NET\Framework\v2.0.50727\csc.exe" (
    echo Running .NET Framework v2.0 version
    echo.
    test20.exe www.google.com
)

pause
:end
%0