Thanks for the info, I'll be sure to try it out. Just FYI, I am using a DELL OEM restore CD. When I do an attended install I do not need to activate, but when I use winnt.sif it requires me to enter a product key. I see no way around that short of the method you described. Although for pro there is a pre-activated master key that i referenced in my first post. I just wish I could use something like that. Though after looking at it once more, couldn't I, since I am using a DELL OEM CD, just extract the product key from a manually installed machine and use that alone? The OEM disc should automatically compliment it with those four files correct?