You could have downloaded KaraokeWorld 6.21 from our software library for free. Commonly, this program's installer has the following filename: mirc.exe. This free program is an intellectual property of KaraokeWorld. The most popular versions among KaraokeWorld users are 6.2 and 1.1. The program belongs to Communication Tools.
From the developer:
KaraokeWorld is a stand-alone application for mirc. This is a channel on mirc for kj's and dj's to get together on the irc network. This application is free for download. You can talk with anyone around the world, this application making it very easy for all the dj's out there to get together.
You may want to check out more software, such as NetVoiz, Air Messenger LAN Server or TerraSip Phoner, which might be similar to KaraokeWorld.