Hyper-V Program Manager
Along the status bar at the bottom of the Virtual PC window are a number of useful status indicators - also known as 'blinky lights' (at least that is what they are called by most people on the development team). A couple of interesting things to know about the 'blinky lights' are:
The third item listed above lead to the interesting case that shortly after beginning at Microsoft (and working on Virtual PC 2004) we had a bug filed that the 'blinky light' for the network card was broken because it was always on and always green. A bit of analysis revealed that no - there was nothing wrong with Virtual PC - it was just that the Microsoft corporate network was so noisy that the light is always on.