This is a little Input Filter that prevents annoying accidental activation of the Caps Lock key. Caps Lock can still be turned on by holding down the Ctrl key as well. (You don't need Ctrl to turn it off.)
The downloadable zip archive contains both an hpkg and the filter file itself, to accomodate all OS vintages. A more detailed README and the source are also there.
Download capslockfilter.zip here (12.5 KB)
Filter written by Pete Goodeve, based on ideas and initial code from Philippe Saint-Pierre and Ryan Leavengood.