First problem: if I'm running Vista or 7, why would I care abut the impending loss of support for XP? It would make more sense if it only ran under Windows XP. Second problem: assuming that the lack of support from Microsoft will somehow 'kill' XP is ludicrous. People will keep using XP until they have no choice but to switch, and while losing support will certainly be a factor (because new security holes will no longer be patched), it will be only one of many. Until Microsoft develops a useful alternative (which Vista sure as hell isn't) that's reasonably priced (which 7 sure as hell isn't), or someone creates a new, Windows-compatible O/S that's actually good and reasonably priced, XP will remain. If Microsoft really wants people to switch to their latest offerings, they should lower their damned prices. Low enough, and everyone would switch. The money Microsoft saves in support and the increase in sales volume would easily offset the loss of their greed-motivated margins.