Well Err..
I used CoolQ for about 2yrs I think.
So It is basically a bot to reply people*s messages on QQ(a IM soft in China).
Though it*s programmed by Yi Language, I mean its plug-ins are bound to be recognized as virus by any security soft, it still have some advantages.
The most important thing is that CoolQ is open-source, allowing people to make plug-ins themselves.
I installed about 12 ones on my bot (called "Yui"), and they allow my bot to play games with group members (mostly maths games), to provide sign in services and so on.
The soft itself runs lots of errors, but with a bot online in a group chat, we indeed had a lot of fun.
I*m looking forward to changing the chatting bot on cloud so that I won*t have to start my PC before start the bot.