1)   GPS.NET Global Positioning SDK 1.5.4.1
Develop precise, efficient, and reliable GPS software in record time with this multithreaded component for desktop and mobile devices, including PocketPC, Tablet PC and now Smartphone!

 2)   GPS.NET 2.3.20
Develop precise, efficient, and reliable GPS software in record time with this multithreaded component for desktop and mobile devices, including PocketPC, Windows CE, Tablet PC, Smartphone and Windows Mobile!

 3)   HS NMEA GPS C Source Library 1.0 1.0
HS GPS is a software library (with full C source code) which provides access to a NMEA-183 compliant GPS receiver via a serial communications port, decoding NMEA sentences: $GPGGA, $GPGSA, $GPGSV, $GPGLL, $GPRMC and $GPVTG.

 4)   HS GPSDLL Library 1.1
HsGpsDll is a Windows Dynamic Link Library which provides access to any NMEA-183 compliant GPS receiver via a serial communications port. HsGpsDll is designed for use from Visual C, Visual Basic or other programming languages.