Hi. I am running Windows Vista Ultimate 64bit wth all the updates installed.
I get error 10016 in the system event log every five minutes for the last week. It persists after re-boots. I have tried following the instructions in the following kb article.
KB899965 support.microsoft.com/default.aspx/kb/899965/en-us
The issue I have is when I follow the instructions in the KB article is that when using dcomcnfg, the drop down lists are disabled and therefore I can't change any of the launch or activation permission settings.
Question 1: Why are the drop down list boxes in the Launch and Activition Permission settings disabled?
Question 2: How do I enable the drop down list boxes in the Launch and Activation Permission settings dialog box?
Note: These events have been occuring ever since I installed Windows Vista Ultimate (since day one).
Event Log details:
Log Name: System Source: DistrubutedCOM Event ID: 10016 Level : Error User: Network Service
Description: The machine-default permission settings do not grant Local Activation permission for the COM Server application with CLSID {AB8902B4-09CA-4BB6-B78D-A8F59079A8D5} to the user NT AUTHORITY\NETWORK SERVICE SID (S-1-5-20) from address LocalHost (Using LRPC). This security permission can be modified using the Component Services administrative tool.

"NumLock95"

I did what the article said and could do any and all things. My user account as Admin rights.

You need Admin rights.

You need Admin rights.

You need Admin rights.

Good point. I should have mentioned in my original post that my account does have admin rights.
However, the distributed COM Users group is empty. I added myself to that group but it didn't help.
Also, other component services property dialog box items are enabled. Like the TrayDesktopBand component properties dialog drop down lists are enabled. I randomly looked at many components under DCOM Config and all the ones I clicked on are enabled. Only the "Thumbnail Cache Out of Proc Server" is disabled.
"Mr. Arnold" wrote:

"NumLock95"

I did nothing there.

Thumbnail is enabled.