One of out clients is running SBS 2008. When trying to start Exchange System Attendant, they receive this message: "Windows could not start the Microsoft Exchange System Attendant service on local computer. Error 1075 the dependency service does not exist or has been maked for deletion". I check the Exchange System Attendant dependency are netlogon, server, workstation, windows event log and RPC. All these services are running. Which service do we miss?