using System; #if NET45 using Microsoft.Owin.Hosting; #endif namespace MvcSample { public class Program { const string baseUrl = "http://localhost:9001/"; public static void Main() { #if NET45 using (WebApp.Start(new StartOptions(baseUrl))) { Console.WriteLine("Listening at {0}", baseUrl); Console.WriteLine("Press any key to exit"); Console.ReadKey(); } #else Console.WriteLine("Hello World"); #endif } } }