Source should be ok, I created checksums from the i386 in SOURCE folder and on the original cd. They match. The same problem exists with 60517a: hscxpsp1.cab line is still missing in txtsetup.sif created by HFSlip. However, even if I added the missing line by hand to txtsetup.sif after running HFSlip, the same error occurred at T-19. Weird. Am I modifying a wrong file? I forgot to mention another persisting problem which I get every time: During text mode copying (Blue screen "Windows XP Professional Setup" after first boot): Setup cannot copy the file: vbscript.dll There exists VBSCRIPT.DL_ in SOURCESS\I386. HFSlip adds the line vbscript.dll = 1,,,,,,,2,0,0 under section [sourceDiskFiles] in txtsetup.sif. Should it be there or is it a bug in HFSlip? Even though install complains it is missing, the file is found in SYSTEM32 after install. As I said, I am running the setup from a network share (FreeDOS booted via PXE from network). I think I will create a HFSlip cd to check that the problem with hscxpsp1.cab is not somewhere else than HFSlip. PS. I guess some of the missing file problems may be neglected if those who test Hfslip have [setupparams] skipmissingfiles=yes in their winnt.sif as suggested (http://www.vorck.com/data/winnt.sif) PPS. I have not had problems with Classic.wmz when using 60517a.