DCOM 10021 - one answer, but it's not free!

Windows XP: dcom error on xp after upgrade

My WinXP SP2 event monitor shows regular occurences of DCOM 10021 error. I figured this would be easy to track down on the net, but the ONLY possible answer is at the Experts-Exchange site. That site used to be free, but it costs money now.

Wow.

The public net has failed me!

The only clue is that it may be related to upgrading a Win2K Pro machine to XP Pro.

Update: I should have scrolled down below the ads. Looks like Experts-Exchange does post the answers after a while. The link referred me to www.eventid.net. Looks like this will be a pain to hunt down. Of course Microsoft's support site had nothing -- hmph.

Update 2: This is looking better. The EventID site is very useful, unfortunately it's part of the "invisible net" (not accessible to search engines). I don't have McAfee installed, but these descriptions are interesting:

If you have a McAfee product installed and you have recently applied Microsoft Windows XP Service Pack 2, then see the link to "McAfee Support Solution ID: KB37954" for information on how to resolve this problem.

Eric Ritchie (Last update 12/15/2004):
I found this error to be a DCOM issue resulting from improper Launch and Activation permissions for the McAfee Framework Service in DCOM configuration. To resolve the issue, I searched for the registry key mentioned in the event description (which turned out to be McAfee's Framework Service). I then opened the Component Services Administrative Tool, and opened the properties of DCOM Config.\Framework Service under Computers\My Computer. Under the Security Tab, I found that the Administrators Group was missing from the Launch and Activation Permissions (Custom Tab). Giving the Administrators group full access corrected the issue.