Do you mind removing dotnet from the HF folder to test? After that, run HFSLIP again and then open TXTSETUP.SIF in a text editor to see if you still get any "install.res.xxxx.dll = 1,,,,,,,2,0,0" lines. They should be all the way at the bottom (if they're still there). Edit: I just checked and those files are part of .NET 2.0. HFSLIP doesn't support slipstreaming of .NET.