Unfortunatly it doesnt work in XP, when you go to that place, it shows an encrypted activation code, which it converts automatically.
However, I have a much easier way, just download and run the attached file, it will let you view YOUR key. The one you purchased and entered when you installed windows.
It WILL NOT created you an illegal one, change your key, or do anything else your not supposed to do.
\"Only two things are infinite, the universe and human stupidity, and I\'m not sure about the former.\"- Albert Einstein (1879-1955)