I am trying to help my nephew with his computer problems. It appears that he was hit by a very nasty virus/trojan. The file "rundll32" appears to have been corrupted. He can not open/run any programs.... after several attempts to fix his computer at his house, I decided to take it home with me and spend more time trouble shooting the operating system. After many hours of messing around with the software, I decided that the quickest way to solve the problem would be to do a "Repair" of Microsoft Windows XP. SO.... I used my WinXP setup disc to do a repair on his computer. At the completion of the repair, it asks for the product code. I entered my product code, which was rejected. I then called him to get his product code, and it rejected that code as well. My question is.... how do you locate the product code on a computer that you can not get into windows? I can use Bart PC software to run dos, and I have been able to open "Regedit", but do not know how to locate the code. Can anyone help me with this? Thanks, for your help.