The Windows task manager might show you a list of running processes, but it does a pretty poor job of letting you know what some of those processes are actually doing. You don't need a Ph.D, to figure out what will happen if you terminate firefox.exe because it's using up 100% of your CPU cycles, but what about spudsvc.exe?

ProcX is a free utility that will show a list of running processes also shows you which applications they're associated with. Sometimes that information might not be particularly helpful, such as when you find out that an process is associated with "services" or "explorer." But it might help you figure out if ending a process will end an application you didn't mean to kill.

You can also use ProcX to show network access, display DLLs loaded by a process, and delete, rename, or suspend/resume a process or DLL. You can also use the program to search for a process name using Google.