Thinking out aloud - Dave Hunter's SharePoint Blog

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Event Type: Error
Event Source: DCOM
Event Category: None
Event ID: 10016
Date:  18/12/2007
Time:  17:01:50
User:  MOSS\MOSSSvc
Computer: WIN2K3BASE001
Description:
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 MOSS\MOSSSvc SID (S-1-5-21-2583425652-4040595884-2567147219-1010).  This security permission can be modified using the Component Services administrative tool.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

• MOSS errors

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Event Type: Error
Event Source: Office SharePoint Server
Event Category: Office Server General
Event ID: 7888
Date:  18/12/2007
Time:  16:39:01
User:  N/A
Computer: WIN2K3BASE001
Description:
A runtime exception was detected. Details follow.
Message: Retrieving the COM class factory for component with CLSID {3D42CCB1-4665-4620-92A3-478F47389230} failed due to the following error: 80070005.

Techinal Details:
System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {3D42CCB1-4665-4620-92A3-478F47389230} failed due to the following error: 80070005.
   at Microsoft.Office.Server.Search.Administration.SearchApi.RunOnServer[T](CodeToRun`1 remoteCode, CodeToRun`1 localCode, Boolean useCurrentSecurityContext, Int32 versionIn)
   at Microsoft.Office.Server.Search.Administration.SearchApi..ctor(WellKnownSearchCatalogs catalog, SearchSharedApplication application)
   at Microsoft.Office.Server.Search.Administration.SearchSharedApplication.get_SearchApi()
   at Microsoft.Office.Server.UserProfiles.SRPSite.IsImportInProgress(String contentSourceName)

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

• WSS errors

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Event Type: Error
Event Source: Windows SharePoint Services 3
Event Category: Timer
Event ID: 6398
Date:  18/12/2007
Time:  16:38:48
User:  N/A
Computer: WIN2K3BASE001
Description:
The Execute method of job definition Microsoft.Office.Server.Search.Administration.IndexingScheduleJobDefinition (ID d0c66122-171a-4705-b4ff-521f671776fb) threw an exception. More information is included below.

Retrieving the COM class factory for component with CLSID {3D42CCB1-4665-4620-92A3-478F47389230} failed due to the following error: 80070005.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

1. Copy the CLSID from the error message.  For example: {61738644-F196-11D0-9953-00C04FD919C1}.
2. Open regedit, perform a find for the GUID you copied.  This will return back the name of the COM+ component.  In this case IIS WAMREG admin service.  
3. Open Component Services and drill down to DCOM Config.
4. Locate the component, right click and select properties.
5. Select the secuirty tab.
6. Click edit on the "lauch and activation permissions".
7. Add the MOSS service account or the account in the event log message.
8. Grant Local Launch and Local Activation, and click OK.
9. Perform an IISRESET.