How to know programmatically whether Message Queueing is enabled on the machine or not?

Question

I know that when I try to create new MessageQueue , system throws InvalidOperationException if the Message Queuing is not enabled.

But how to know programmatically whether Message Queueing is enabled on the machine or not? I am using C# 2.0 & C# 4.0 in two different code bases.

Answer 1

You can use the System.ServiceProcess for this one, but first you need to add reference to your project the Service.ServiceProcess , and you can retrieve all the services and get their status like this:

List<ServiceController> services = ServiceController.GetServices().ToList();
ServiceController msQue = services.Find(o => o.ServiceName == "MSMQ");
if (msQue != null) {
    if (msQue.Status == ServiceControllerStatus.Running) { 
        // It is running.
    }
} else { // Not installed? }

Answer 2

Answering little late, but if you are scripting fan Powershell is at your help. To get status update on numbers, use following script:

$queues = Get-WmiObject Win32_PerfFormattedData_msmq_MSMQQueue
$queues | ft -property Name,MessagesInQueue

This will show you name of queue and number of items in each queue. Hope this will help someone someday. :D

Answer 3

如何判断是否安装了 MSMQ

Answer 4

You have answered your own question there: try to create a new MessageQueue, and catch InvalidOperationException.

If you don't get an exception, MQ is enabled; if you get an exception, it's not enabled. (you may dispose of that MessageQueue instance if one was created, as you've only used it for detecting support)