I found out that I had to import the OLE registry entries from another server, however, even then, I still could not access the properties of DCOM on that server and I had to edit the permissions from the remote server through Component Services. See ME934701
for more information
Microsoft's article ME892500
may be of some help.
I encountered this problem after installing NetIQ onto a W2K3 SP1 server that had just been upgraded from Windows 2000. The problem appears to be with the COM Security via Component Service (it did not upgrade successfully). I exported the "HKLM\Software\Microsoft\OLE" reg key with values "DefaultAccessPermission", "DefaultLaunchPermission", "MachineAccessRestriction" and "MachineLaunchRestriction" from a working SP1 server and imported them into the problematic server. Then, I rebooted the server and all appears to be working again.
I received this error after installing monitoring software on a Domain Controller. Symptoms included Enhanced GUI screens not displaying correctly (ex: extended services page) and losing the ability to open event viewer messages. I also received an error when trying to open COM+ Applications under the Component Services. To fix the problem, I opened the Component Services and changed the COM Security by editing the default permissions. I noticed a service account that did not have the remote access checkbox checked. I gave the service account remote access permissions to the COM Applications and rebooted the DC. The problem went away.
Edit the DCOM/COM permissions on another PC and export the following registry key HKLM\Software\Microsoft\Ole. Save the registry key first before you import this file on the PC with the problem.