MsDtsServer is the DCOM application name for: Microsoft.SqlServer.Dts.Server.DtsServer

better known to its friends as CLSID ABF05265-635E-44B0-A28F-AEA45247ACA0

You can discover this by searching for the CLSID in the registry.

I have a similar permissions problem. Whenever a Maintenance Plan runs to backup a database or log, I get 2 DCOM errors, Event ID 10016, which is the same as the error you posted.

I can see how to fix the permissions, for example a nice explanation at:

http://www.cleverworkarounds.com/2007/10/25/dcom-fun-with-sharepoint/

In my current, standard set up, only Administrators and SYSTEM have "Local Launch" permissions. Adding local launch permissions to the domain user listed in the Event ID, solves the problem. My SQL Server and SQL Server Agent services both run under the same domain user account, so I am unsure which service requires the DCOM permissions. [Perhaps this is another reason to run the 2 services under different credentials.]

Is this a normal problem for an MSSQL Instance which runs under the credentials of a non-local-administrator?

I am also curious as to what exactly is going on in the background with DCOM. The Maintenance Plans complete successfully, with no errors. The only error is logged in the System Event Log. If the Maintenace Plan completes successfully, what is the DCOM local launch error related to?

The backups are being saved to a NAS, but the NAS drive is presented to the OS as a local drive, so I can't imagine that RPC with DCOM is required. Also, files are written correctly.... Any ideas?

Thanks,

Andy