Multithreaded service in C#

//
// Multithreaded Hello World server
//

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

using System.Text;
using System.Threading;
using ZMQ;

namespace ZMQGuide
{
internal class Program
{
public static void Main(string[] args)
{
using (var context = new Context(1))
{
using (Socket clients = context.Socket(SocketType.ROUTER), workers = context.Socket(SocketType.DEALER))
{
clients.Bind("tcp://*:5555");
workers.Bind("inproc://workers"); // FYI, inproc requires that bind is performed before connect

var workerThreads = new Thread[5];
for (int threadId = 0; threadId < workerThreads.Length; threadId++)
{
workerThreads[threadId] = new Thread(WorkerRoutine);
workerThreads[threadId].Start(context);
}

// Connect work threads to client threads via a queue
// Devices will be depricated from 3.x
Socket.Device.Queue(clients, workers);
}
}
}

private static void WorkerRoutine(object context)
{
Socket receiver = ((Context)context).Socket(SocketType.REP);
receiver.Connect("inproc://workers");

while (true)
{
string message = receiver.Recv(Encoding.Unicode);

Thread.Sleep(1000); // Simulate 'work'

receiver.Send("World", Encoding.Unicode);
}
}
}
}