'Windows Inspection Tool Set', and 'Regex Coach'

Windows Inspection Tool Set

The Windows Inspection Tool Set (WiTS) provides you with cross-linked, filtered views in a Windows system. View operating system information, processes, services, users, network interfaces and connections, file shares, printers and more. Get notified of system resource status, new network connections, process starts and exits, service status and other system events.

http://magicsplat.com/wits/

Regex Coach

The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressions interactively. It has the following features: shows whether a regular expression matches a particular target string, shows which parts of the target string correspond to captured register groups or to arbitrary parts of the regular expression, and can "walk" through the target string one match at a time. It can also simulate Perl's split and s/// (substitution) operators.

http://weitz.de/regex-coach/