The expiration date (that is, that date at which the blocker will no longer "block" installation of the service pack) for the Service Pack Blocker Tool for Windows Vista SP1 is April 28, 2009; for Windows XP SP3 the expiration date is May 19, 2009.
Regards, Michael B. Smith, MCITP:SA,EMA/MCSE/Exchange MVP My blog: http://TheEssentialExchange.com/blogs/michael I'll be at TEC'2009! http://www.tec2009.com/vegas/index.php ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~