Thats not the Prob. The Problem is: After hfslip finished the job, the file, located in HFGUIRUNONCE, is not in "SOURCESS\i386\SVCPACK". Only the .inf and the .cmd file are in "i386". So, after installation with a CD build from this folder i get a "missing file" message. I copy the file from "x\HFGUIRUNONCE" to "SOURCESS\i386\SVCPACK and all work fine. So, that was my question, is there a mistake in hfslip code!? tommyp said no, there are no changes to this section. OK. I think that my Problem is another secret in the wide MS-World.