class Program
    {
        public static void Main()
        {
            HostFactory.Run(x =>                                 //1
            {
                x.Service<TownCrier>(s =>                        //2
                {
                    s.ConstructUsing(name => new TownCrier());     //3
                    s.WhenStarted(tc => tc.Start());              //4
                    s.WhenStopped(tc => tc.Stop());               //5
                });
                x.RunAsLocalSystem();                            //6

                x.SetDescription("Sample Topshelf Host");        //7
                x.SetDisplayName("Stuff");                       //8
                x.SetServiceName("Stuff");                       //9
            });                                                  //10
        }
    }
    public class TownCrier
    {
        readonly Timer _timer;
        public TownCrier()
        {
            _timer = new Timer(5000) { AutoReset = true };
            _timer.Elapsed += (sender, eventArgs) => Console.WriteLine("It is {0} and all is well", DateTime.Now);
        }
        public void Start() { _timer.Start(); }
        public void Stop() { _timer.Stop(); }
    }