Program.cs

using System;
using System.Linq;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using Funbit.Ets.Telemetry.Server.Helpers;
using Microsoft.Owin.Hosting;
using System.Threading;

namespace Funbit.Ets.Telemetry.Server
{
    static class Program
    {
        [DllImport("kernel32.dll", EntryPoint = "CreateMutexA")]
        private static extern int CreateMutex(int lpMutexAttributes, int bInitialOwner, string lpName);
        [DllImport("kernel32.dll")]
        private static extern int GetLastError();
        private const int ErrorAlreadyExists = 183;

        public static bool UninstallMode;

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            //// check if another instance is running
            //CreateMutex(0, -1,
            //    Uac.IsProcessElevated()
            //        ? "Ets2Telemetry_8F63CCBE353DE22BD1A86308AD675001_UAC"
            //        : "Ets2Telemetry_8F63CCBE353DE22BD1A86308AD675001");
            //bool bAnotherInstanceRunning = GetLastError() == ErrorAlreadyExists;
            //if (bAnotherInstanceRunning)
            //{
            //    MessageBox.Show(@"Another ETS2/ATS Telemetry Server instance is already running!", @"Warning",
            //        MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            //    return;
            //}

            //log4net.Config.XmlConfigurator.Configure();

            //Application.EnableVisualStyles();
            //Application.SetCompatibleTextRenderingDefault(false);
            //UninstallMode = args.Length >= 1 && args.Any(a => a.Trim() == "-uninstall");

            // Application.Run(new MainForm());

            string baseAddress = "http://localhost:9000/";

            // Start OWIN host 
            using (WebApp.Start<Startup>(url: baseAddress))
            {
                Console.WriteLine("Starting....");

                while (true)
                {
                    Thread.Sleep(5000);
                    Console.WriteLine("Still running....");
                }
            }
        }
    }
}