mESA or mIRC Extension for San Andreas is a fully functional one channel/one network IRC mod that works through mIRC.

From the readme:
"This mIRC Extension for San Andreas allows you to view messages sent to an IRC channel as well as talk back to the channel... all while you are playing San Andreas."

Please read the readme.txt file carefully for installation and usage instructions.

Some features
- View IRC channel messages and send your own from SA.
- You can show/hide the chat messages for unobstructed gameplay.
- The number of chat lines visible is configurable.
- Can work with existing mods that make use of d3d9.dll (like spookie's Speedometer proxy dll for example)

Credits:
Programming: Arushan (aru)
Special Thanks: Hammer83, kyeman, Luke (Smithers), spookie
Testing: Crazy_Seb, Kon, xlDooM