Sysinternals Freeware - Utilities for Windows NT and Windows 2000
They've got a lot of useful utilities. Including:
Process Explorer v8.4
Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more. This uniquely powerful utility will even show you who owns each process.
Autoruns v4.31
See what programs are configured to startup automatically when your system boots and you login. Autoruns also shows you the full list of Registry and file locations where applications can configure auto-start settings.
