mIRC 7.67 | File size: 6 MB mIRC is a social platform that uses the Internet Relay Chat protocol. Its main purpose is to create a virtual connection between users all over the world, who can communicate via its chat capabilities. In addition, it also features a scripting language, which makes it extensible and highly customizable.It has a clean, practical interface that is highly configurable and supports features such as buddy lists, file transfers, multi-server connections, IPv6, SSL encryption, proxy support, UTF-8 display, UPnP, customizable sounds, spoken messages, tray notifications, message logging, and more.