static void Main(string[] args) { var startup = new Startup(); // this program's Startup.cs class var app = new AppBuilder(); // the app builder, from Owin.Builder package // the server adapter, from Microsoft.HttpListener.Owin package, gets first chance ServerFactory.Initialize(app.Properties); // this method adds all middleware and frameworks startup.Configuration(app); // ext method to set server address in app.Properties app.SetHostAddress("http", "+", 8080); // build pipeline, and give to server adapter from Microsoft.HttpListener.Owin package using (ServerFactory.Create(app.Build(), app.Properties)) { Console.WriteLine("Running on http://+:8080/"); Console.WriteLine("Press enter to exit"); Console.ReadLine(); } }