Laptop GPS/map software

Last year at the Hobbs Region 9 contest the CM used a PC program for
providing driving directions to crews based on GPS coordinates reported
by wayward pilots. Can someone tell me what software that was?

I need to get something like that for me and crew to use (PC based),
with the additional feature that after giving it a latitude/longitude
destination, it will give you driving directions, dynamically, based on
your current GPS position (as opposed to a set of static directions
that end with "Rotsa Ruck").

ted/2NO