QUOTE (murvun @ Mar 24 2006, 08:24 PM)

Microsoft Baseline Security Analyzer:
Windows safety updates: no missing update :thumbup
That's strange, PSA works perfectly for me (Win XP SP2 though, not Win 2000). Does the tool really say "missing" or just "note"? I've some of those as well, the helpfile tells about the status "note":
This is a special status. It means that PSA was not able to determine whether the patch is installed or not. This is not due to PSA error, but because the mssecure.xml file contains no information about affected files and/or registry keys for this bulletin.
So you may indeed have all patches installed and there is no discrepancy between WU/MU, MBSA and PSA.