SysInternals Process Explorer v15.30

Process Explorer is an advanced process management utility that picks up
where Task Manager leaves off. It will show you detailed information about
a process including its icon, command-line, full image path, memory
statistics, user account, security attributes, and more. When you zoom in
on a particular process you can list the DLLs it has loaded or the operating
system resource handles it has open. A search capability enables you to track
down a process that has a resource opened, such as a file, directory or
Registry key, or to view the list of processes that have a DLL loaded.

The Process Explorer display consists of two sub-windows. The top always shows
a list of the currently active processes, including the names of their owning
accounts, whereas the information displayed in the bottom window, which you can
close, depends on the mode that Process Explorer is in: if it is in handle mode
you will see the handles that the process selected in the top window has opened;
if Process Explorer is in DLL mode you will see the DLLs and memory-mapped files
that the process has loaded.

Process Explorer also has a powerful search capability that will quickly show you
which processes have particular handles opened or DLLs loaded. The unique
capabilities of Process Explorer make it useful for tracking down DLL-version
problems or handle leaks, and provide insight into the way Windows and
applications work.