Open Source for Mac OS X

aMSN is an alternative to the classic MSN Messenger, with more features. The chat client looks very similar to Microsoft's product yet differs on a number of points.

Additionally is also supports video conferencing. aMSN comes in about 40 languages worldwide so if you don’t speak very good English then download the version of aMSN in your own language. With aMSN you can also sign into more than one MSN account at once without having to open up other MSN clients. It also has tabbed windows to keep all your current messaging windows together and organized. Plugins and skins are also supported with aMSN so you can customize the application up a bit.