Hello people ! Sorry for my English, I'm French ! First, I want to say "Thanks !" to Nanaki for his help, now I use Cdswitch for making an unattended installation of Windows Xp + programs. So my problem is that I want to know if Cdswitch is compatible with an install with a virtual machine (I use Microsoft Virtual PC 2004). I have encounter a problem : when Cdswitch is running on the installation of programs (I use a .bat script) during the end of the installation of Windows Xp, and show the warning "Chance the cd", when I change it (with Virtual PC you can only switch Iso) the Cdswitch program stop immediately and cancel the rest of the .bat script ! So... Help ! Thank you all for your answers.