Hello. . I've been contemplating adding sp3 Pre beta to my disk but heres the things stopping me, if anyone can say otherwise just for the benifit of others, then please do. 1.SP3 may have a time bomb hidden to stop XP eventually. 2.The keys ment for SP2 may fail to work with SP3. 3.MS Updates may fail because SP3 is detected. 4.When the final SP3 comes out it wont allow you to apply it to the system if the Pre SP3 is detected. So the main concerns here are the future proofing. . . I've put alot of time into my disk and it means I somtimes don't see PC's back for years. . so knowing it's safe for updates is most important. Rick, I know it's just a project/hobby/test this update pack. . . but please consider NOT doing it, you time is to valuable to waste on this project. . about 1/2 my Disk mods are your's, so keep up the good work, but don't extend this Post SP3 Pre BETA update pack to more than a learning experiance, cause I don't see it mattering in a few months when final appears. Sorry if I sound disrespectful, but I've spent my share of wasted time on projects like this, so think of it more as advice. RON