NetCrunch WMI Tools is a capable tool which uses WMI to access system information both locally and remotely.
Unlike many similar applications, you don't need to know anything about WMI to find it useful. Just launch WMI Tools and it displays a good-looking system information tool telling you all about your Windows installation, PC hardware, running processes, event logs, Windows services and more.
Better still, the program can also display the same information for any PC on your network.
Clicking "WMI Explorer" displays various predefined queries - "WLAN Config". "Network Speed", "System Restore Points" - which display further information at a click.
You can also build custom custom queries via a Wizard, although this always didn't work well for us, with the program hanging a couple of times.