The MarshallSoft GPS Component for Visual Basic and .NET (MGC4VB) is software toolkit that allows any Visual Basic program to receive and decode standard NMEA 183 sentences from a GPS receiver connected to the RS232 serial port. MGC4VB features include: Uses the Windows API (Win32/Win64) for serial port input. Works with both real and virtual serial ports. Runs as a background thread unattended. The most current GPS data is always available on demand. Most commonly used NMEA sentence types automatically decoded. Does not depend on support DLLs. Several latitude/longitude calculation functions included. Several example programs with full source are provided. MGC is royalty free distribution with your compiled application. MGC4VB can be used in the development of Win32 and Win64 GPS applications running under Windows 95/98/Me/NT/2000/XP/Vista/7. Works with Visual Basic, .NET and VBA. License covers all programming languages. Download at http://www.marshallsoft.com/mgc4vb.htm. Also available for C/C++/C# (MGC4C).