aMSN is an free open source MSN Messenger clone, featuring

┬╗ Offline Messaging
┬╗ Voice Clips
┬╗ A New Login Window & Contact List (As of 0.97)
┬╗ Display pictures
┬╗ Custom emoticons
┬╗ Multi-language support (around 40 languages currently supported)
┬╗ Sign in to more than one account at once
┬╗ File transfers
┬╗ Group support
┬╗ Normal, and animated emoticons with sounds
┬╗ Chat logs
┬╗ Event alarms
┬╗ Webcam support
┬╗ History in color
┬╗ Ability to autoclose the filetransfer window when it is finished
┬╗ New plugins log window (Alt-P)
┬╗ Plugins compatible with supported languages
┬╗ Faster loading skin window
┬╗ Skins in chatwindow
┬╗ Resizable chatwindow bottom
┬╗ When you add a new user, you can define in which group you want to add them
┬╗ When a contact change status, the top of the chat window changes color ( green for away, grey for offline, etc.)
┬╗ New panel GUI to alert when there's a new aMSN version
┬╗ Possibility to download the new release directly by aMSN
┬╗ Automatically update language files and plugins from the web
┬╗ New gui for deleting users (also possible to block on deletion)
┬╗ Possible to add notes for each user (XML)
┬╗ Support for MSN Mobile service
┬╗ Tabbed windows so you can group conversations using tabs
┬╗ Status is displayed inside a frame, so it won't dissapear when you scroll
┬╗ Display picture in notification alert (like MSN 7)
┬╗ Statistics for history (logging)
┬╗ Now possible to choose any state for your login status (before it was only possible to login invisible or online)
┬╗ Timestamping