No ... Windows XP isn't a subscription product.<br><br>The subscription model is part of Microsoft's long-term .Net Internet-based software strategy. They were going to offer Office XP on a subscription basis in the U.S., but they backed off at the last minute. (You can buy it that way in Australia and New Zealand, though.)<br><br>In the license agreement for my Office X there's a paragraph that deals with a "Subscription Product" expiring after a year, but Office X isn't a subscription product so it doesn't apply.<br><br>With Windows XP you have to do that product activation thing within a month or so, but after that it's yours to keep.<br><br>