Bonjour Xavier,

thank you for your comments.
I understand that to get session-based sites are a problem.

But at least some of the problems would not exist, if the 
httrack spider worked like the real user.
A real user will always follow a web pages' links up or 
down. A real user will never load a page on the same level -
 but without a link to the current page.
Maybe a recursive approach is a solution.
thanks
jens