If you've ever tried tracking down a process in Windows Task Manager, you know it's like looking for a needle in a haystack. Process Explorer makes the job a lot easier. This freeware utility displays running processes in an intuitive tree format that includes not only process names, but also program icons and other data, such as description, image, and processor time.
It also can identify the process for a given application window or look up a process name in Google--a handy way to spot spyware. Additional features offer detailed information on performance, DLLs, threads, handles, TCP/IP connections, security settings, and environments. Despite its lack of visual polish, Process Explorer is one of the best Task Manager replacements we've seen.