>I don't know what you mean by Member.Session (?) but yes, ASP.NET session.

The Member.Session field is a framework related field I am using to recognize the user from a stored cookie. That is initialized at login.

>Yes. If you allow sessionId to be stored in a cookie you will get the same id for new instances (or new tabs) for the relevant browser.
>If 'cookieless=true' the session id is included in the URL and you get a different session for each instance or tab.

Is this something you have to maintain on your own or this is all automatic?