Service Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace ConsoleService
{
    class Program
    {
        static void Main(string[] args)
        {
            const int Port = 4800;
            Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            Console.Write("Running service..." + Environment.NewLine);
            server.Bind(new IPEndPoint(IPAddress.Any, Port));
            while (true)
            {
                IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
                EndPoint tempRemoteEP = (EndPoint)sender;
                byte[] buffer = new byte[1000];
                //Recive message from anyone.
                //Server could crash here if there is another server
                //on the network listening at the same port.
                server.ReceiveFrom(buffer, ref tempRemoteEP);

                Console.Write("Service got '" + buffer[0] + "' from " + tempRemoteEP.ToString() + Environment.NewLine);

                Console.Write("Sending '2' to " + tempRemoteEP.ToString() + Environment.NewLine);

                //Replay to client
                server.SendTo(new byte[] { 2 }, tempRemoteEP);
            }
        }
    }
}