NetTalk Portable IRC Client
NetTalk is a Portable Internet Relay Chat IRC App. Net Talk utilizes a Windows style interface, making is easy to use. It supports English, Spanish, Dutch, Russian, Chinese, Hungarian and German languages.
internet relay chat
0irc - Tiny Portable Internet Relay Chat (IRC)
0irc is the smallest known (IRC) Internet Relay Chat client in the world for Windows. Not only does it have a small footprint, but also contains a small set of necessary features. Features such as chat, dcc file transfers, multiple server connections and an all channel overview. 0irc is command line based with no menu, so it is meant for those who already know their way around IRC Clients. 0irc requires only 172KB for complete installation.
MegaIRC - Portable IRC Client
MegaIRC is an Internet Relay Chat (IRC) Client that can be used portably, Portable IRC. It allows a user to connect to any IRC network and chat with people around the world. The software contains the basic essentials of a standard IRC client.