Process Explorer shows you information about which handles and DLLs processes have opened or loaded.

The Process Explorer display consists of two sub-windows. The top window 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 Process Explorer is in: if it is in handle mode you'll see the handles that the process selected in the top window has opened; if Process Explorer is in DLL mode you'll 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.

What's new in Version 11.0:

- New treelist control for better UI responsiveness
- Asynchronous thread symbol resolution on threads tab of process properties
- More flags on groups in security tab and SID display
- Thread IDs on threads tab
- On-line search uses default web browser and search engine
- Vista ASLR column for processes and DLLs
- Vista Process and thread I/O and memory priorities in process and thread properties
- Vista Process and thread I/O and memory columns
- PROCESS_QUERY_LIMITED_INFORMATION support on process permissions on Vista
- Run as limited user runs with low IL on Vista
- Reports information for all object types on Vista
- Show details for all processes elevation menu item on Vista
- Supports replacement of task manager on Vista
- /e to launch elevated
- /s switch to select a process at startup
- Compiled w/ASLR, DEP
- Faster startup
- Miscellaneous bug fixes and minor improvements