Posts Tagged ‘msmq’

System.Messaging.MessageQueueException was unhandled : A workgroup installation computer does not support the operation.

January 29th, 2012

If you play with MSMQ and get an exception like

System.Messaging.MessageQueueException was unhandled
Message=A workgroup installation computer does not support the operation.
at System.Messaging.MessageQueue.ResolveFormatNameFromQueuePath(String queuePath, Boolean throwException)
at System.Messaging.MessageQueue.get_FormatName()
at System.Messaging.MessageQueue.ReceiveCurrent(TimeSpan timeout, Int32 action, CursorHandle cursor, MessagePropertyFilter filter, MessageQueueTransaction internalTransaction, MessageQueueTransactionType transactionType)
at System.Messaging.MessageQueue.Receive()


It might be due to a reason like mine.



var queues = MessageQueue.GetPrivateQueuesByMachine(“.”);
var queue = queues.Where(q => q.QueueName == “private$\\mynewqueue”).Single();
var message = queue.Receive();

it does work
but with


var queue = new MessageQueue(“private$\\mynewqueue”);
var message = queue.Receive();

it doesn’t.

Change to


var queue = new MessageQueue(“.\\private$\\mynewqueue”);
var message = queue.Receive();

and you might be good to go again.

I haven’t bothered to figure out exactly why but my workaround might help you.