Hello GM Yeap, my $OEM# was a typo, but unfortunatly only on my message. I put the DriverSigningPolicy=Ignore because without this line my SATA fasttrak 376 drivers did not install at all and I received an error saying that the istallation processes was incapable to copy the driver files (.sys, .cat, etc) Regarding the AC97 drivers the situation is really very strange, as soon as I include the DRIVERS\002 at my OemPnPDriversPath (see extract bellow), the setup proces does not find my fasttrack drivers. OemPnPDriversPath="DRIVERS\006;DRIVERS\002" I was also thinking about to include my NVidia drivers at my installation DVD but since I'm having this problems with the sound drivers I will try to solve this one first. Since you told me that XPCREATE does nothing special with the drivers I can exclude my supposition that XPCREATE.CAB (missing info for my driver inside this file) had something to do with my problem. By the way thanks for the amazing XPCREATE.