I'd like to be able to reactivate my XP installs offline if possible. I have a valid and successfully activated XP install but I have never been able to transfer the activation to a clean install on the exact same hardware. I've read about the wpa backup method described here: http://netsecurity.about.com/od/windowsxp/qt/aaqtwinxp0829.htm from several sources but I've never been able to get it to work. Has anyone been able to get this to work? Thanks for any assistance.