Same issue here with a variety of errors. It all started with an error in lsass.dll I'm using nLite to integrate all critical updates in to a previously slipstreamed XP sp3 installer. Is this a problem with one of the downloaded packages? Could it be nLite? I'm going to dig in, I'll report here if I find something. Any and all help is appreciated Cheers, Jeroen EDIT: I'm going for a one pass nLite session now, see if this clears things up. I thought it would have been something with the downloaded packages, seems like it's more nLite related. You can just ignore this message One more thing: Great app! Thanks for donating your time to making things simpler for all of us! EDIT2: the one pass solved my issues. Cheers. (sorry for the late update)