Tools on Windows OS
Tasklist command line tool is part of the regular installation of the Professional version of XP and can be downloaded to the Home edition. Tasklist shows how much memory and CPU time running processes are using, what DLL files they rely on, and other information.
More info on tasklist is at http://commandwindows.com/tasklist.htm.
Insights of the past for the present
ON THE BOOK SHELF
May your insights be worthy.