Monitoring service broker queues through a .NET process

Is there a way for a .NET application to receive a notification when a service broker queue has been updated with a new message? I tried using SqlDependency on an SB queue but I got an "invalid" error in my notification handler.

Such a notification would be much better than having to poll the queue every N seconds.

Thanks

Issue a WAITFOR(RECEIVE.. ) on the queue with no timeout? Make sure you set the CommandTimeout on the SqlCommand to infinite.|||I will try that. Thanks very much