Process Explorer shows you information about which handles and DLLs
processes have opened or loaded. The 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 depends on the mode that it
is in. The unique capabilities make it useful for tracking down
DLL-version problems or handle leaks, and provide insight into the way
Windows and applications work.