We've found SBS 2008 servers report this error as soon as clients begin accessing CompanyWeb:
DCOM 10016 MM/DD/YYYY HH:MM:SS AM 24
Event Details:
The application-specific permission settings do not grant Local Activation
permission for the COM Server application with CLSID
{61738644-F196-11D0-9953-00C04FD919C1} 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.
Our friends at MS PSS provided the fix:
This event can occur if DCOM permission settings are not correct for the application.
CLSID {61738644-F196-11D0-9953-00C04FD919C1} refers to the IIS WAMREG admin Service. To prevent this event, grant Local Activation permission
to NT AUTHORITY\NETWORK SERVICE account as follows:
- In Administrative tools, open Component Services and expand Component Services, Computers, My Computer, DCOM Config
- Look for the IIS WAMREG Admin Service
- Right click and select Properties and then select the Security tab
- Click Edit under Launch and Activation Permissions
- Add the Network Service user
- Add Local Activation rights
- Click OK twice
- Close Component Services
You may need to restart the server to have this take effect.