[Zope] Replacement UserFolder

I need to replace acl_users for a given folder (thankfully not the root) with something that will read from a database AND do cookie-based authentication (so HTML login screen, rather than basic auth). SimpleUserFolder, which was a snap to set up, doesn't seem to do the latter. PluggableUserFolder 2.4.1 seemed to not like Zope 2.7. A previous workplace used GenericUserFolder, but it's rather obsolete. Suggestions? -roy