A companion to BlackBox2, GPS Viewer is a simple utility that generates xml code to display selected Microsoft Flight Simulator GPS variables while flying. It does not create a stand-alone gauge. Instead, the generated code must be pasted into the xml code of a host gauge that communicates with the gps.dll module.
GPS Viewer generates xml code in either FS9 or ACES format and can be used with FS9 / 2004 or FSX.