Counter-Strike was what really got me into programming too, in the form of several small programs that added some neat functionality to CS and other HL mods. As a high school student it was pretty amazing to have tens of thousands of people using the software I was writing.

If you used any of the programs I wrote or know anyone who did, I guess I owe you an apology. One of the programs, Half-Life Sound Selector (HLSS), annoyed countless people by allowing players to blast WAV files over the voice comm system. Really, really annoying. Another program, HLirc, interfaced with HL and mIRC, letting you chat in IRC using the game's console, until VAC started detecting it (incorrectly) as a cheat and banned you that is. The other program was a Winamp plugin called HLamp. It let you control Winamp from inside the game and even tell others what song you were listening to. My favorite feature: automatically turning the volume up/down when you died/respawned. Of course the VAC eventually detected HLamp as a cheat too.

Anyway, sorry if I got your WON/Steam account banned!

Good memories :)