XP Key Changer allows users to change Windows XP Product Key, Owner and Registered Organization. XP Key Changer finds and decrypts the product key in your computers and displays the information right in the main panel. It also recovers the Service Pack version, Owner registered name and Organization registered name. XP Key Changer can change all this information, with one click, on all your machines. XP Key Changer supports all the Service Packs, including Service Pack 3.