"PrcView is a utility that shows in detail the processes that are running in Windows."
PrcView is a utility that shows in detail the processes that are running in Windows, showing the memory used by each of them, and the modules used, letting you change their priority, stop them, etc. You could say that PrcView is a similar tool to the Windows Task Administrator, but with much more detailed information, covering that program's shortcomings.
For each DLL, PrcView tells you of the complete route and the version. Also, for more advanced users, PrcView has a command line version that lets you create scripts, to see if a process is working, end it, etc.