DCOM Error on Exchange Server

On my Exchange server, my Event log has recently filled up because every few minutes I get the following error:

DCOM got error "Logon failure: the user has not been granted the requested logon type at this computer. " and was unable to logon DBR_HOUSTON\Administrator in order to run the server:
{179894D5-B853-4F32-A7C1-7B2E7F69D271}

The only thing I have done on this computer lately is install and configure Groupshield, but the McAfee people say it's unrelated to Groupshield.  I have searched the Microsoft Knowledge Base, and have found some similar errors, but nothing exactly like this.  Most of the ones I have found deal with IIS (which isn't even installed on this machine) or other software that is not installed on this machine.

Any ideas?

Thanks,

ccbailey
ccbaileyAsked:
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bluezoo7Commented:
Verify that the account you are using to run Groupshield as a service exists and has the right to log on as a service.

If Groupshield created a mailbox when it was installed, verify the mailbox is NOT hidden in the GAL.

Also, check to see if any services on the Exchange server are failing to start.

Also, search the registry for "179894D5-B853-4F32-A7C1-7B2E7F69D271" and see if this points to the service having the problem.

Last, when you can, try uninstalling Groupshield and see if the problem goes away.
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kevalaCommented:
Sounds like MAPI anti virus. Since it logs onto each mailbox.
What is the EXACT event ID and Source?
I can definitely find more for you.
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slink9Commented:
What version of ES?  What SP is applied there?
What OS and SP for that?
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ccbaileyAuthor Commented:
kevala:  The exact Event ID is 10004, and the Source is DCOM.  I would think it is the anti virus as well, I just can't figure out what's causing it.  Thanks for your help
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ccbaileyAuthor Commented:
slink9:  I am running Exchange Server 5.5 and Service Pack 4.  The Operating System is NT 4.0, and I think I am running SP 6.
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ymashCommented:
Have you changed the admin user password lately?
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ccbaileyAuthor Commented:
Your answer wasn't exactly right, but it was close enough to get me there.  The account had the right to log on as a service, but I noticed it didn't have the right to log on as a batch job.  When I gave it this right, I quit getting the error message.  Also, a feature of Groupshield started that hadn't been working before.  I bet they were somehow related.

Thanks for your help!!

ccbailey
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