EF Process Manager - description from developer:
What the Process Manager is and what you can do with it:
* you can easily see what's happening behind the desktop
* which processes are running on your computer
* you can see all modules which are loaded, or only those used by a particular process
* you're the master: Process Manager lets you close normally or kill any running process
* register and unregister modules
* complete information about process and modules
* see Windows error codes
* consult environment variables
* search for modules on the disk
* export the information for further use in Excel
So, with one quick look you can see that Process Manager is the tool you're looking for a long time, it shows you the backstage of your computer, and more, it lets you control things.
EF Process Manager is a "Free to try" program. You can download and try it for an evaluation period.