This morning I tried (and failed) to impress my co-workers with a little Visual Basic module I wrote. You can download it here. It contains code to turn the keyboard LEDs (Num Lock, Caps Lock and Scroll Lock) on and off. This allows you to create interesting patterns, like for example the popular KITT scanner pattern from the famous television series Knight Rider. I’ve also included a small example in MS Excel that demonstrates how to use the module’s functions.
I haven’t found a useful purpose yet, but if anyone does, let me know.