If you receive Error number: 0xC80003FB when trying to use Windows Update or Microsoft Update from within VMware Workstation 6.5 (and possibly other versions of VMware), here is a quick fix:
To force Windows Update or Microsoft Update to work in VMware Workstation 6.5, perform the following steps in the Windows VM:
- Launch a command prompt
- Execute the following commands:
- net stop wuauserv
- regsvr32 c:\windows\system32\wups2.dll
- net start wuauserv
- Exit the command prompt
- Run Windows Update or Microsoft Update again
NOTE: These commands assume Windows is installed to C:\Windows.
This is not a fix all. Normal Windows Update problems may still occur. This is a specific fix for running XP, Server 2003 or Server 2003 R2 in VMware Workstation 6.5.

