Not sure if this is the right place but here goes. A friend of mine had a Dell XP that the MB just took a dive. He asked if I could build him a new PC with XP. Problem...I think the Dell disks will only work on Dell and he is not sure if an XP disk was included (he's looking). I have XP but no longer use it. He has some programs from his work that warn NO WINDOWS VISTA or 7 . The software has a bad dislike of Vista and 7. I have all the SP's on disk so I can get him up to date no problem. Am I stepping over the line legally if I use XP? Thanks for the feedback.