Sorry, I posted a message in German, ... Here is my question in English: I want to simply logout like it can be done in the Zope management Interface (on the upper right corner). And I tried different ways described at zope.org and in other sites found by google: <dtml-raise Unauthorized> was the first, I tried. But when I get the Dialog Window to relogin and I cancel this, I can browse again within the "user-auth" folder with the same user. <dtml-call "REQUEST['RESPONSE'].expireCookie('__ac', path='/', domain='.domain.org')"> didn't work too ( I think, that's because, the authentification method doesn't set cookies?). So: Is the only way to solve this an other user authentification method? thx. thorsten. -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net