Don't know if it will work with a USB numpad, but there's a freeware program called Sharpkeys that I use on my laptop to make the Capslock key into a Windows key. It might do what you're looking for.

Great build quality and typing feel. True full-size layout. Full programmability and customizability, with emphasis on ease of disassembly and repairability. Looks great. Pricey. Too heavy to carry ...

Scientists have published a new study detailing the use of tumor-promoting immune cells to attack an aggressive, often fatal form of brain cancer. The work involves 'reprogramming' these cells so that ...