Mats, I am using version 1.2 - no this was not to Ris boot - am using WinPE on CD and USB Keys / Drives as a common boot environment to ghost images from USB drives or network. I believe the current version PE uses an installer to add the drivers as opposed to manually locating files - the installer "may" do required house keeping and preparse (install) inf storing the reg settings, if so this symptom would not be seen. Thx, SP