LDAP-Based Address Books for Win32?

Snafoo asks: "I'm trying to replace an Access-powered communal address book at my office with something cross-platform and (preferably) LDAP-powered. Unfortunately, I can't find a single email client for windows that would allow people to update the LDAP dB from their address-book interface except, the usual suspect, Outlook. I've tried Mozilla, Eudora, and a slew of other 'freebies', but they only allow browsing; at the moment, I'm considering dropping cygwin+XFree on the desktops of the windows clients and giving them access to Evolution on a central server (God bless Ximian!), however, most of the Win32 boxen are used by non-clueful sorts who would be put out by the inconvenience of what amounts to a second desktop. Aside from shelling out $90 a seat for WinAxe, or another rootless X server for Windows, what do you all recommend?" Those interested in X-Servers for Windows may wish to check out this previous article, however if you are using an X11 server not mentioned, please feel free to recommend others, here.