Windows XP Service Pack 2 Release Candidate 2
Did you know that Windows XP Service Pack 2 is now RC2?
Do you know what effect SP2 will have on applications which you have (or are about to) deploy?
Did you know that you can easily include a custom action with your installers which will prompt administrators to correctly configure the firewall access required by your application.
If you don't think that you need SP2 yet, then read this article to see how it might affect a web application:
How to Make Your Web Site Work with Windows XP Service Pack 2
You can grab the Windows XP Service Pack 2 Release Candidate 2 Preview here:
http://www.microsoft.com/technet/prodtechnol/winxppro/sp2preview.mspx