MSMQ Messages disappear after reboot

[Erik Mayo]

I have Windows 11 Pro. Enabled MSMQ a while back and it had been working for a while. I developing and testing code that puts messages and reads from the queues.

After a recent windows update, each time the laptop reboots MSMQ disappears from the Computer Mangement >Services and Applications. In Services, Message Queueing is still running, but trying to stop takes a while and eventually it fails. When looking at "Turn Windows features on or off" MSMQ is still enabled. I have no option but to turn it off, reboot and turn it back on. But my queues (and messages) are gone.

When I restart with MSMQ back on, I recreate the Queues and run code to add messages. Everything looks fine even when I restart the code and messages are still there. After refreshing Computer Managment a couple of times the Outgoing Queues get entries for each of my queues "DIRECT-OS:... - Error: The queue is not open or may not exist." The code still works and can still access the messages. A reboot causes the same problem of loosing MSMQ, the Queues and messages.

I did some research and found a few mentions of similar issue from a few years back but not really had the answer. I found one that mentioned (Microsoft KB Archive/827493) using PurgeInconsistentQueues setting on registry. I did this and that solved the MSMQ getting hung, and Queues disappearing. The messages still get lost after reboots. Also the Outgoing Queues

I found a conversation in this group that mentions the same problem. The message was on OCT-2008. It mentions setting msg.delivery = 1 ' MQMSG_DELIVERY_RECOVERABLE. Looking at the code msg doesn't have this property, In C# the code looks like this:

var myQM = new Message
{
Formatter = new XMLMessageFormatter(new[] { typeof(myAppQMsg) }),
Priority = 1,
Recoverable = true,
Body = xAppQM
};

outQueue.Send(myQM);

That code has been working for years. And it was working on my Dev laptop until recently. Any clues? I appreciate the help.

Thanks

Erik