Tone Detector
It monitors your soundcards line-in or mic-in and launches any program when it detects any tone. (tone on or tone off.) Its kinda fun to play with.
Here's a couple of caveats though, if you try it:
Make sure to set the "detection button" to off, before changing the sampling rate. If its running when you clear the field, it crashes the program. (Divide by zero error.) You must then open the settings.ini file with NotePad and change the sample rate back to something greater than or equal to 6000.
Don't mistake the "sample rate" for the frequency detected.
Make sure whatever progam you launch has its own means of preventing multiple instances, while you experiment with this program, or you may end up with a million open windows real quick!
One last point of interest: Their own documentation describes its primary function as: "ToneDet is usually used to detect very low frequency tones that cannot be heard by humans." But its designed to be used with a computer sound card. I didn't think that many sound cards frequency response extended down to, or below 20 hz.
Anyway, thought someone might find this interesting.
Dex