Global.asax

<%@ Application Language="C#" %>

<script RunAt="server">

  void Application_Start(object sender, EventArgs e)
  {
    // Code that runs on application startup
    RouteConfig.RegisterRoutes(System.Web.Routing.RouteTable.Routes);
    ScriptManager.ScriptResourceMapping.AddDefinition("jquery",
      new ScriptResourceDefinition
      {
        Path = "~/Scripts/jquery-2.0.3.min.js"
      }
    );
  }

  void Application_End(object sender, EventArgs e)
  {
    //  Code that runs on application shutdown
  }

  void Application_Error(object sender, EventArgs e)
  {
    // Code that runs when an unhandled error occurs
  }

  void Session_Start(object sender, EventArgs e)
  {
    // Code that runs when a new session is started
  }

  void Session_End(object sender, EventArgs e)
  {
    // Code that runs when a session ends. 
    // Note: The Session_End event is raised only when the sessionstate mode
    // is set to InProc in the Web.config file. If session mode is set to StateServer 
    // or SQLServer, the event is not raised.
  }
</script>