Please note! New versions of CookieCrumbler are now at hathaway.freezope.org
CookieCrumbler lets you set up cookie-based authentication even when your user folder does not support cookies. Zope 2.3.x or above is required.
Just add a CookieCrumbler instance to the folder where your acl_users is located.
(Versions before 0.3 had a security hole so they have been removed.)