This should be impossible, if you have done what I have written within my guide.I suspect, that you didn't use an untouched XP CD image as source. Regards Fernando I am using untouched xpsp3 cd. but my dought that that for two senario. 1. f6 content sys file and and catalog file but not set off dll files. 2. pnp set has all of them plus some set of dll files. which will be more effectively for slipstream.