As title what is the difference between Global.asax and Global.asax.vb?

I found that if I store some Application variable in the Global.asax in the root, for example, Application["var"] = 1;

if cannot be accessed by modules. That is, referring to it will get a null reference.

Any help would be appreciated.

Ricky.

I use following code to storeda global variable.

Application["sss"] = 1,

which is implemented in the application start event handler.within Global.asax .

But I find that other pages, modules cannot access it via Application["sss"] . In other words, I get a null reference.

So I modify the AP_Start handler witin Global.asax.vb,   Global.asax's codebehind to let Application["sss"] accessible to other pages.

Could I just implment the Application["sss"] at Global.asax? Or any logic implement in Global.asax will not be executed; we must modify Global.asax.vb

Any help would be appreciated.

Ricky

Thanks for explanation.

So if I add following code in Global.asax

<%@ Application Inherits="DotNetNuke.Common.Global" Language="VB" %>

<script runat="server">
    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)

         Application["abc"] = 1

    End Sub
</script>

I can access Application["abc"] anywhere in the website ?

Ricky.