It is very easy to configure. It's completely web-based, and runs with no java. WebChatter is a simple and fast web chat program that uses server push technology to create a Realtime web chat environment. This means there is no browser refreshing.
All messages appear immediately.
It is available in a plain Perl version and a compiled version. Billow Chat is a Web chat program that largerly reduces the usage on the CPU from the server and the data exchanged between users and server. WWWChat is a perl cgi program for web chating. Users can create a room, but only the owners can kick someone. The owners can give the ownership to another users.