From my post about this problem, gives me an interesting link that I want to share with you: PE Builder, from Bart Lagerweij.
Bart's PE Builder helps you build a "BartPE" (Bart Preinstalled Environment) bootable Windows CD-Rom or DVD from Windows XP or Windows Server 2003 very suitable for PC maintenance tasks.
It will give you a complete Win32 environment with network support, a graphical user interface (800x600) and FAT/NTFS/CDFS filesystem support. Very handy for burn-in testing systems with no OS, rescuing files to a network share, virus scan and so on.
This will replace any Dos bootdisk in no time!
Check it... I think it could be one of my favourite tools!