Global.asax.cs

using Castle.Windsor;
using MvcCastleIntegration.Infrastructure;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;

namespace MvcCastleIntegration
{
    // Note: For instructions on enabling IIS6 or IIS7 classic mode, 
    // visit http://go.microsoft.com/?LinkId=9394801

    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);

            // Initialize Castle & install application components
            var container = new WindsorContainer();
            container.Install(new ApplicationCastleInstaller());

            // Create the Controller Factory
            var castleControllerFactory = new CastleControllerFactory(container);

            // Add the Controller Factory into the MVC web request pipeline
            ControllerBuilder.Current.SetControllerFactory(castleControllerFactory);
        }
    }
}