Here's the changelog for this nice little CS/mIRC addon:
HalfIRC 1.0.5.0 (09/27/01)Check out and download HalfIRC.
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+ Added Options dialog
+ User now able to customize replacement of characters that cannot be displayed by Half-Life
+ Notices and private messages are now shown
+ Compatible with Counter-Strike 1.3 Retail
+ New online help
* Loading/unloading of mIRC script no longer shown in status window