“Alvaro’s Messenger is a Tcl/Tk client for MSN Messenger. Its features include multi-language support, smileys, docking support for KDE 3 and GNOME 2 (FreeDesktop compatibility), logging, profiles support, email notification, customizable sounds, group management, file transfers with NAT support, and proxy support. Some special features include the possibility of knowing who has deleted you from his/her list, connecting "silently" (appearing invisible), and so on. “