how can i pass Information from one page other?

Hello
I need to pass  Information from one page other, but not by QueryString,
i trying to use session, i read this
http://msdn.microsoft.com/en-us/library/ms972429.aspx
but how can i read and write on  session and how i pass it from one page to other.
I write the code in vb.net
 
tnx 
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