global.asax.cs

    public class Global : HttpApplication
    {
        private static AppHost _appHost;

        protected void Application_Start(object sender, EventArgs e)
        {
            _appHost = new AppHost();
            _appHost.Init();
        }

        protected void Application_BeginRequest(object src, EventArgs e)
        {
            HttpContext.Current.Items.Add("AutofacScope", _appHost.AutofacContainer.BeginLifetimeScope(
                MatchingScopeLifetimeTags.RequestLifetimeScopeTag));
            if (Request.IsLocal)
                Profiler.Start();
        }

        protected void Application_EndRequest(object src, EventArgs e)
        {
            ((IDisposable) HttpContext.Current.Items["AutofacScope"]).Dispose();
            Profiler.Stop();
        }

    }