pabber lets you access the Global Address List on a Microsoft Exchange server. It can add entries to Pine's .addressbook. (and probably other mail clients with minimal mods).
Release Notes: A fix for a serious error in the default base. Users of 1.1 will still need to change their base; if 1.1 didn't work at all for you, try this version.
Release Notes: Use of a preference file to save server, easy to change via the menu.
Release Notes: A fix for a bug where pabber would crash after idling for too long and a new search was requested. Also, you can launch pabber without a connection and it will inform you gracefully of problems rather than crashing out.
Release Notes: Searches and adding, and functionality with Pine's .addressbook (should work for other clients with minor modification).
Release Notes: A switch to a menu bar system, "Prefs" option displays current server and base, and a general code clean-up.