Microsoft no longer supports this product on its own chat service. Microsoft Chat is part of Internet Explorer suite. It is an excellent chat program provided you upgrade to version 2.5.
Some people find the comic strip mode as an attractive alternative to standard text based programs.
We cannot provide a link to the Microsoft Chat download page as Microsoft has removed it from their web site. The only method to obtain version 2.5 is via Windows Update site. This may require full installation of IE4.0 which is beyond scope of this document. The Internet is full of strange people and privacy can be hard to keep. Select View menu than Options then Settings tab.