The greatest utility every written by master toolsmith and driver expert Mark Cariddi. This utility has two views: (a) one view that will show you the entire PnP enumeration tree of device objects, including relationships among objects and all the device's reported PnP characteristics, and (b) a second view that shows you the device objects created, sorted by driver name. There is nothing like this utility available anywhere else.
What's new in DeviceTree V2.20
Signed the driver, updated USB/PCI Ids. Added some new display fields.