The Message Queuing Triggers service provides a rule-based system to monitor messages that arrive in a Message Queuing service queue and, when the conditions of a rule are satisfied, invoke a COM component or a stand-alone executable program to process the message. The Message Queuing Triggers service is installed as an integral part of the Message Queuing service on Windows Server 2003. In Windows Vista, the Message Queuing Triggers feature must be explicitly selected for it to be installed. If the Message Queuing Triggers service stops, you will not be able to apply rule-based monitoring or invoke programs to process messages automatically. Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\System Services!Message Queuing Triggers (2) REG: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\msmqtriggers!Start