DS7/BookingWeb/App_Start/RouteConfig.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace BookingWeb
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                name: "Common",
                url: "Common/{action}.aspx",
                defaults: new { controller = "Common", action = "GetCaptcha" }
            );

            routes.MapRoute(
                name: "Default",
                url: "{client}/{lang}/{controller}/{action}.aspx",
                defaults: new { controller = "User", action = "Login" }
            );
        }
    }
}