vb.net impersonation ?

[nozam]

Hi,

I am looking for a way to programmatically take the identity of a "window user" using vb.net.
I search for a solution on the Web and find out that you can perform an "impersonation" .
I tried the solution and it work but only on the first page ( The page on which i logged in) .When i go to an other page i lost my "window user identity".

Is it possible to not loose the window user identity after the first page? Or is there a better way to act as a specific window user in vb.net?

Thanks.