MSMQ

K2 – no task notifications processing due to “Unable to load EventBus Server” error

K2 versions older than Five rely on MSMQ for task notification emails queuing and processing. Sometimes you may see the following scenario: You start process which supposed to send task notification. Notification not delivered and there is no error messages logged nor in K2 host server log, MSMQ diagnostic log nor in Eventbus.ClientRecorderError table logged K2 – no task notifications processing due to “Unable to load EventBus Server” error

Unable to start Message Queuing service: “The Message Queuing service terminated with service-specific error %%-1072823311”

As you may know MSMQ (see WikipediA or MSDN for details) is one of prerequisites for K2 Server installation, to be more specific it is necessary for you to have the following components installed: Microsoft Message Queuing (MSMQ) Services Message Queuing Server Directory Service Integration Microsoft Message Queuing or MSMQ is a message queue implementation Unable to start Message Queuing service: “The Message Queuing service terminated with service-specific error %%-1072823311”