IRCX
IRCX (Internet Relay Chat eXtensions) is an extension to the Internet Relay Chat protocol, developed by Microsoft. IRCX defines ways to use Simple Authentication and Security Layer authentication to authenticate securely to the server, channel properties/metadata, multilingual support that can be queried using the enhanced "LISTX" command (to find a channel in your language), an additional user level (so there are three levels: owners, hosts, and voices), specific IRC operator levels, and full support for UTF-8 (in nicknames, channel names, and so on).