Microsoft made available to customers in August a couple of different tools to temporarily disable the delivery of SP2 to users machines via its Windows Update/Automatic Update patching services. A number of customers had requested these tools, claiming they were not ready to take delivery of SP2, as they had not tested SP2 adequately to make sure it did not break their applications. Originally, the tools were set to postpone delivery via Windows Update/Automatic Update for 120 days, starting August 16. But on September 7, Microsoft extended this deadline to 240 days (April 12th 2005).
Microsoft has acknowledged that a number of applications, including several of its own, do not work properly with SP2 unless certain settings are changed. And a number of third-party hardware and software vendors still have yet to provide patches and updates to their products that will allow them to work with SP2.
This fall, Microsoft will be reaching out to this user base via its “Protect Your PC” campaign, in an attempt to make sure as many XP users as possible install the SP2 update.
http://www.microsoft-watch.com/article2/0,1995,1643908,00.asp?kc=MWRSS02129TX1K0000535