[Zope] Netscape & Open session with NT active user

Hi, In fact, it is not just a question about Zope, it is a question about Netscape : When you protect a directory and ask for a password, I would like to know if Netscape is able to access to the parameters of the loged user (under NT). PS : In fact, I would like that the users do not need to enter twice their login/password. Thanks