http://blogs.technet.com/sdoakes/archive/2006/03/14/422012.aspxI have seen where permissions had gotten changed in the system folders where the Windows 2003 SP1 was applied and the server was rebooted. After the reboot, nearly all of our automatic services failed to start. This was because the Remote Procedure Callen-USCommunityServer 2.1 SP1 (Build: 61025.2)