What can I use to measure the bandwidth a specific Windows application uses?

Ideally, I'd like to hear of an application to show how much bandwidth each application is consuming on my local Windows PC. Alternatively, instructions to use any other application for this purpose. The simpler the better. Something that works for Windows 2000/XP/Vista/7 (if possible).

Any ideas? Thanks.

Answer

Check out NetLimiter. The free Monitor version does everything you want.