Extract TarTool.zip to a local folder.
Make sure TarTool.exe and ICSharpCode.SharpZipLib.dll are in the same directory.
Open a Command Prompt and run TarTool.exe to get the usage information
>TarTool.exe
Usage :
>TarTool sourceFile destinationDirectory
>TarTool D:\sample.tar.gz ./
>TarTool sample.tgz temp
>TarTool -x sample.tar temp