Global.asax file

Hi,

I am starting to use the global.asax file, as I have never touched on it before. I successfuly increment an application value when a session starts, but when a session ends, I subtract one from this value. The Session End process is not firing, and the value just keeps increasing. Please could some one advise.

Thanks in advance

Andrew

P.s. My Code

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

<script runat="server">

   
    void Application_Start(object sender, EventArgs e)
    {
        Application["NoUsers"] = 0;
        // Code that runs on application startup

    }
   
    void Application_End(object sender, EventArgs e)
    {
        //  Code that runs on application shutdown
        Application["NoUsers"] = Convert.ToInt32(Application["NoUsers"]) - 1;
    }
       
    void Application_Error(object sender, EventArgs e)
    {
        // Code that runs when an unhandled error occurs
        Application["NoUsers"] = Convert.ToInt32(Application["NoUsers"]) - 1;
    }

    void Session_Start(object sender, EventArgs e)
    {
        Application["NoUsers"] = Convert.ToInt32(Application["NoUsers"])+1;
        Response.Write(Application["NoUsers"].ToString());
        // Code that runs when a new session is started

    }

    void Session_End(object sender, EventArgs e)
    {
        Application["NoUsers"] = Convert.ToInt32(Application["NoUsers"]) - 1;
        // 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>