SharePoint Errors

I had been getting the following two errors in the SharePoint server’s event logs:

Event Type:     Error 
Event Source:   Windows SharePoint Services 3 Search 
Event Category: Gatherer 
Event ID:       2424 
Description: 
The update cannot be started because the content sources cannot be 
accessed. Fix the errors and try the update again.

and

Event Type:     Error 
Event Source:   DCOM 
Event Category: None 
Event ID:       10016 
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 ....  
This security permission can be modified using the Component Services 
administrative tool.

The first error appears to be fixed using the technique described here:

http://guru-web.blogspot.com/2007/08/wss-30-content-indexing-update-cannot.html

The second error was fixed by using the technique described here:

http://geekswithblogs.net/mhamilton/archive/2006/12/19/101568.aspx

(the GUID in the error message corresponds to the “IIS WAMREG admin service”). A knowledgebase article, http://support.microsoft.com/kb/920783, regarding this issue says that you can safely ignore this issue, but it does give you the method to stop receiving the messages.