Here is your prob, the winnt.sif file is not parsed when you install windows from within windows, it uses the gui version of teh winnt.exe, not the command line version. You would need to run this from dos with the proper command line options. However if you have specified format in your harddrive it would not work. It would fail to format and you will have to update windows rather than do a full install.!!! I recommend that you use a cd and burn all the neccessary files to the CD. Update will work this way, but you will still have to enter info at first prompt screens. Sunil