1)   GPS-Simulator 2.0
The Skylab GPS Simulator provides a complete suite for all your GPS simulating needs. You can: * Replay your GPS logfiles * Multiplex your GPS receivers * Transform your GPS receiver interface * Bridge a remote GPS receiver

 2)   GPS Express Standard Edition 3.x
GPS Express provides a feature rich interface to serial NMEA-0183 protocol data and works with most NMEA-0183 devices, including GPS Receivers. GPS Express is available in three versions (Standard, Professional, Graphical)...

 3)   GPS Express 3.x
GPS Express provides a feature rich interface to serial NMEA-0183 protocol data and works with most NMEA-0183 devices, including GPS Receivers. GPS Express is available in three versions (Standard, Professional, Graphical)...

 4)   Eye4Software GPS Toolkit 2.4
Toolkit to add GPS functionality to software (GPS SDK). All NMEA0183 protocol versions are supported, Garmin USB PVT support. Support for datum conversions and coordinate conversion using different map projections.