gistfile1.cs

namespace Bazinga
{
    using System;
    using System.ComponentModel.Composition;
    using System.ComponentModel.Composition.Hosting;

    using Fix;

    using Microsoft.Owin.Hosting;

    using Owin;

    using AppFunc = System.Func<System.Collections.Generic.IDictionary<string, object>, System.Threading.Tasks.Task>;

    internal class Program
    {
        public static readonly string Location = Path.GetDirectoryName(typeof(Simple.Web.Behaviors.IETag).Assembly.Location);

        private static void Main(string[] args)
        {
            var simpleWeb = BuildApp();

            var startOptions = new StartOptions("http://localhost:55000");

            using (WebApp.Start(
                startOptions,
                app =>
                {
                    app.UseErrorPage();
                    app.Use(new Func<AppFunc, AppFunc>(ignoreNextApp => (AppFunc)simpleWeb.Invoke));
                }))
            {
                Console.WriteLine("Katana: listening at {0}. Press CTRL-C to stop.", hostname);

                Console.ReadKey();
            }
        }

        private static AppFunc BuildApp()
        {
            var fixer = new Fixer();

            using (var catalog = new AggregateCatalog())
            {
                catalog.Catalogs.Add(new AssemblyCatalog(typeof(Simple.Web.Behaviors.IETag).Assembly));
                var container = new CompositionContainer(catalog);
                container.ComposeParts(fixer);
            }

            return fixer.BuildApp();
        }
    }

    public sealed class PathUtility : IPathUtility
    {
        public string MapPath(string virtualPath)
        {
            return Path.Combine(Program.Location, virtualPath.TrimStart('/').Replace('/', Path.DirectorySeparatorChar));
        }
    }
}