Can anyone tell me how to find WinXP product key that is installed on my computer without using WGA tool supplied by Microsoft? My situation is Microsoft is telling me the product key sticker # on the chassis of my computer does not match the one installed on my computer.This is the way it came from Dell. I would like to double check against the WGA tool. The product key installed on my computer will not pass the validation tool for Wimdow's updates. Any help out there?

Gary.