Process Explorer for Windows: Task Manager On Steroids

Process Explorer, from Sysinternals, is an advanced process management application that tells you what is running under 32/64-bit Windows, how those running processes affect other processes, and their use of system resources.

System Requirements: Microsoft® Debugging Tools for Windows® - dbghelp.dll

Price: Free!

Details: The main screen shows the processes running on your PC in a treeview. Each process is listed with its icon, a process id, current CPU utilization, a description, and the maker. You can search for processes by handle or the DLL a handle has loaded, and find more for information about a process from the Web by right-clicking on it in the tree.

Recommendation: MS TechNet Magazine April 2006 - ToolBox: New Products for IT Professionals