You are getting this error in the Application log of the computer that is running Sharepoint Services 3: “The database WSS_Content on ComputerName\Microsoft##SSEE is not accessible to missing Windows Internal Database signatures” Event Type:... 

The specified errors occuring because the NETWORK SERVICE does not have Local Activation Access to SPSearch DCOM. To track down errors like that the best approach is to search for the CLSID value inside registry which will point you out the correct...