Thu, Mar 29 2007 23:43
If you have SBS 2003 R2 (R2 mind you) and you remove SP2 the one thing you have to watch out for is the scheduled tasks getting messed up.
If you uninstall Windows Server 2003 SP2, scheduled tasks may subsequently fail because of the loss of administrative credentials. To verify that this issue is the cause of tasks failing, check the Task Scheduler log for error 0x8004130f.
You can just reenter the password and fix up your tasks.
If you have SBS 2003 SP1 and you remove Windows 2003 sp2 watch out for the MMC 3.0 rollback to 2.0 issue documented in the release notes:
Microsoft Management Console
Filed under: News
If you start certain snap-ins for Microsoft Management Console 3.0 and then subsequently uninstall Windows Server 2003 SP2, you may not be able to start some or all of the snap-ins in Microsoft Management Console 2.0 afterwards. If this occurs, remove all the files in the %APPDATA%\Microsoft\MMC\ folder.
I didn't see this when I uninstalled SP2 because R2 has MMC 3.0 in it.