Mono.Zeroconf Testcase.

Main.cs

using System;
using System.Net;
using System.Threading;
using Mono.Zeroconf;

namespace ZeroconfTest
{
    class MainClass
    {
        static ManualResetEvent mre = new ManualResetEvent(false);
        const string serviceName = "ZeroConfTest";

        public static void Main(string[] args)
        {
            RegisterService registrar = new RegisterService();
            registrar.Name = serviceName;
            registrar.RegType = "_http._tcp";
            registrar.UPort = (ushort)80;
            registrar.Response += HandleRegistrarResponse;
            registrar.Register();

            mre.WaitOne();
        }

        static void HandleRegistrarResponse(object o, RegisterServiceEventArgs args)
        {
            if (args.IsRegistered)
            {
                Console.WriteLine("Service registered at port {0}.", (ushort)args.Service.Port);

                ServiceBrowser browser = new ServiceBrowser();
                browser.ServiceAdded += HandleBrowserServiceAdded;
                browser.Browse("_http._tcp", null);
            }
            else
            {
                mre.Set();
            }
        }

        static void HandleBrowserServiceAdded(object o, ServiceBrowseEventArgs args)
        {
            if (args.Service.Name == serviceName)
            {
                args.Service.Resolved += HandleArgsServiceResolved;
                args.Service.Resolve();
            }
        }

        static void HandleArgsServiceResolved(object o, ServiceResolvedEventArgs args)
        {
            // The "this.port = (ushort)IPAddress.NetworkToHostOrder((short)port);" fix I made in BrowseService.cs is essentially the same as the manual fix below.
            Console.WriteLine("Resolved port as {0}, without NetworkToHostOrder.\nResolved port as {1}, with NetworkToHostOrder.", (ushort)args.Service.Port, (ushort)IPAddress.NetworkToHostOrder(args.Service.Port));
            mre.Set();
        }
    }
}