Global.asax.cs

namespace GlobalMessageHandlersBot
{
    using System.Web.Http;
    using Autofac;
    using Microsoft.Bot.Builder.Dialogs;
    using Microsoft.Bot.Builder.Internals.Fibers;

    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            this.RegisterBotModules();

            GlobalConfiguration.Configure(WebApiConfig.Register);
        }

        private void RegisterBotModules()
        {
            Conversation.UpdateContainer(builder =>
            {
                builder.RegisterModule(new ReflectionSurrogateModule());
                builder.RegisterModule<GlobalMessageHandlersBotModule>();
            });
        }
    }
}