Hello! As I found how Zope's sessions work, I'd like to write script which would handle this: 1. If user comes to the website and he has cookies DISABLED, he will have the session data stored in URLs, as I have set up in "browser_id_manager" object checking the "Automatically Encode Zope-Generated URLs With A Browser Id" option - so his URL www.mysite.com/mypage will be encoded to http://www.mysite.com/_ZopeId/38936190A0sgFZ2i4l0/mypage for example. 2. BUT (and here comes the point) - if user browses the web and he has cookies ENABLED, he will browse with *classic* URLs without encoded session data, so for example www.mysite.com/mypage (he doesn't need to have session data in URLs, because they will be read from cookies). So the question is - is there a way how system could detect if user has or hasn't cookies and would encode Zope-Generated URLs *only* if user has cookies disabled? Or does some session tracking product for Zope exist which does it handle this way? Thank you for answer, Lubos.