Here the link to get IRC (internet relay chat) *www.mirc.com/get.html
Its a Instant communication software and Mirc which is a popular Shareware Irc Client for windows
*www.mirc.co.uk/irc.html
Here's how to install:
*www.mirc.com/install.html
and the usual command list:
*www.mirc.co.uk/cmds.html