Pub-Sub envelope subscriber in C#

//
// Pubsub envelope subscriber
//

// Author: Michael Compton, Tomas Roos
// Email: ku.oc.egdeelttil|notpmoc.leahcim#ku.oc.egdeelttil|notpmoc.leahcim, moc.liamg|soorsamotp#moc.liamg|soorsamotp

using System;
using System.Text;
using ZMQ;

namespace ZMQGuide
{
internal class Program
{
public static void Main(string[] args)
{
using (var context = new Context(1))
{
using (Socket subscriber = context.Socket(SocketType.SUB))
{
subscriber.Connect("tcp://localhost:5563");
subscriber.Subscribe("B", Encoding.Unicode);

while (true)
{
string address = subscriber.Recv(Encoding.Unicode);
string contents = subscriber.Recv(Encoding.Unicode);
Console.WriteLine("{0} : {1}", address, contents);
}
}
}
}
}
}