StaticViewEngine.cs

    public class StaticViewEngine : VirtualPathProviderViewEngine
    {
        public StaticViewEngine()
        {
            MasterLocationFormats = new string[] {
            };
            ViewLocationFormats = new[] {
                "~/build/templates/{1}/{0}.html",
                "~/build/templates/{0}.html",
                "~/build/{1}/{0}.html",
                "~/build/{0}.html",
                "~/Views/{1}/{0}.html",
                "~/Views/Shared/{0}.html"
            };
            PartialViewLocationFormats = ViewLocationFormats;
        }
 
        protected override IView CreatePartialView(ControllerContext controllerContext,
                                                   string partialPath) {
            return new StaticView(partialPath);
        }
 
        protected override IView CreateView(ControllerContext controllerContext,
                                            string viewPath,
                                            string masterPath) {
            return new StaticView(viewPath);
        }
    }

    public class StaticView : IView
    {
        private string _viewPath;

        public StaticView(string viewPath)
        {
            _viewPath = viewPath;
        }

        public void Render(ViewContext viewContext, System.IO.TextWriter writer)
        {
            viewContext.HttpContext.Response.WriteFile(_viewPath);
        }
    }