Tkabber is a Free and Open Source client that provides a Tcl/Tk interface to the Jabber instant messaging and presence service
Tcl/Tk is a graphical scripting language that runs on the Unix, Windows, and Macintosh platforms. The choice of Tcl/Tk for a Jabber client is three-fold:
· it is portable: once you install a Tcl/Tk interpreter on your system, the Tkabber script "just runs" — without having to compile anything;
· it is customizable: Tkabber reads a configuration file when it starts that tells it the settings of various parameters; and,
· it is extensible: the configuration file is actually a Tcl script, so you can replace or augment entire portions of Tkabber (if you're so inclined).
Tkabber is fully-featured:
sessions:
· hashed passwords
· encrypted sessions (if you install an optional extension)
· login via HTTP proxy
· user-defined hooks for connection establishment and release
· XMPP/Jabber MIME type
messages:
· emoticons
· signed/encrypted messages (if you install an optional extension)
· file transfers (HTTP, DTCP and IBB transports)
· filters
· groupchat (GroupChat-1.0 and Multi-User Chat conferencing protocols)
· headline messages
· message events
· completions of nick and commands
· hyperlinks
· user-defined hooks for chat window events
presence:
· avatars
· browsing
· groupchat and roster invitations
· conference room bookmarks
· annotations about roster items
· signed presence (if you install an optional extension)
· vCards
· user-defined hooks for presence changes
windowing:
· configurable look-and-feel via a resources database
· unicode
· tabbed/non-tabbed interface
· sound notifications
· nested roster groups
· for Unix: auto-away, spell checking, KDE docking, and WMaker icons
· for Windows: auto-away, and taskbar icons

· Support for STARTTLS (required for XMPP/1.0 compliancy)
· Reorganized menu
· Support for searching in chat window
· Support for annotations about roster items (JEP-0145)
· Support for conference rooms bookmarks (JEP-0048)
· Added multilogin support for GPGME
· Better support for xml:lang
· Support for service discovery extensions (JEP-0128)
· Support for NTLM authentication
· Many fixes and enhancements

Пока нет

Внимание! Если программа "Tkabber" не бесплатна (о чем написано выше, в колонке "Лицензия", бесплатные это GPL и Freeware, все остальные платно) и вам нужно зарегистрировать или купить программу "Tkabber", скачать ключи или программа требует активации - поднимитесь чуть выше по странице, в характеристиках программы, в поле "Лицензия", рядом со стоимостью, будет специальная ссылка для поиска программы "Tkabber" в магазинах.