these have been given before, so you can find them by searching For DirectX, it's impossible. But, there is a solution : you have to use DirectX8 launcher (dxsetup.exe), and a command line like that : %systemdrive%\winapps\directx\dxsetup.exe /install /silent. It works ! For other programs, i don't know cause i don't install them on an unattended CD/DVD.