Everytime group policy updates on any of our DC's (can be reproduced with a gpupdate /force) the following event gets logged:
Log Name: System
Date: 25/10/2011 2:47:57 PM
Event ID: 10009
Task Category: None
Computer: <domain controller>
DCOM was unable to communicate with the computer <old AppV server we no longer have> using any of the configured protocols.
The server being looked for was setup to try out Microsoft AppV, but we decided not to use it, and got rid of that server (deleted the VM).
I recently removed the computer account from our AD, but I still get that DCOM error on our DC's. I've checked through our Default Domain and Default Domain Controller GPO's, and I can't find a reference to that server directly (although I don't know much about AppV and I might find something if I knew what to look for?).
So far, I don't think there are any problems caused by this, but I am interested to know why this is occuring, and if anyone has any suggestions on where/how to start looking for the the source of the error.