Win Xp Key Plz Help In Retrieving Win Xp Pro Product Key From Windows Old Folder.?

Plz help in retrieving win xp pro product key from windows old folder.? - win xp key

Win XP is on the old Windows folder, this folder was created during the installation of Win7. Now I want the Win XP Key Age of this file. Magicaljellybean can use the keys of installed programs imaginable.