Process Explorer is an advanced process management utility that picks up where Task Manager leaves off. It will show you detailed information about a process including its icon, command-line, full image path, memory statistics, user account, security attributes, and more. When you zoom in on a particular process you can list the DLLs it has loaded or the operating system resource handles it has open. The top always shows a list of the currently active processes, including the names of their owning accounts, whereas the information displayed in the bottom window, which you can close, depends on the mode that Process Explorer is in if it is in handle mode you will see the handles that the process selected in the top window has opened, if Process Explorer is in DLL mode you will see the DLLs and memory-mapped files that the process has loaded.

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.