procexp.exe is process explorer. It is an expanded version of task manager. More information can be found here.
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
Every attempt has been made to ensure the information about procexp.exe is accurate but alot of malware applications try to pose as valid applications. If it is something other than what was posted above please leave some feedback in the forum.
And its one of the best ive used at that, great controll and some excelent features.