Keyboard Leds for Windows puts the LEDs on your system tray
Keyboard Leds is a simple, freeware application that does one thing: it adds an icon with a tiny three-square grid to your system tray, and that icon reflects the status of your keyboard LEDs. So, if you turn Caps Lock on, the middle “LED” turns white. Scroll Lock is the right one (and in case you’re wondering, it still does stuff, especially in Excel), and Num Lock is the leftmost square.
It’s also supposed to have an OSD feature that pops up a message saying something like “Caps Lock is on,”.
At any rate, it’s a handy application for those of us whose laptops tend to place the LEDs in obscure spots, make them tiny, or do away with them completely (as is often the case). Just make sure that Windows doesn’t hide the icon.
