I have a legitimate, valid CD key ( I even called Microsoft support who verified it was legitimate) HOWEVER, the SP2 CD installation would not accept the OEM Key. My SP1 cd is OEM from Cyberpower, whereas this SP2 CD is not. I downloaded a SP2 CD because I was unable to slipstream SP2 onto the SP1 disc without a 64bit OS. I had to reinstall Windows XP Pro 圆4 Edition, but only had a SP1 CD. Yes, I could have installed a new copy of Windows, but I would prefer to repair my copy so I don't lose all my installations/drivers/etc. My copy of Windows got corrupted, so I was forced to use the Windows CD Install->Repair Option.
