static void Main(string[] args)
        {
            short PublisherPort = 12346;
            short SubscriberPort = PublisherPort;
            NetMQContext Context = NetMQContext.Create();
            NetMQBeacon publisher = new NetMQBeacon(Context);
            publisher.Configure(PublisherPort);

            NetMQBeacon publisher2 = new NetMQBeacon(Context);
            publisher.Configure(PublisherPort);

            NetMQBeacon subscriber = new NetMQBeacon(Context);
            subscriber.Configure(SubscriberPort);
            subscriber.Subscribe("");

            publisher.Publish("This is a message 1", TimeSpan.FromSeconds(2000));

            // If the line below this is uncommented I get an error
            //publisher2.Publish("This is a message 2", TimeSpan.FromSeconds(2000));

            string peerName = "";
            while (true)
            {
                string received = subscriber.ReceiveString(out peerName);
                Console.WriteLine(received);
            }
        }