datAxe TCP IP serial data converter
datAxe is a flexible converter to solve all your needs between serial data and TCP/IP networks on Windows computers. datAxe software package makes serial data from your PC available on TCP/IP-based networks and makes TCP/IP data available on physical and virtual serial ports of your PC. ... any instrument that you can plug into the serial port (RS232, RS422 or RS485) of your PC) to make them part of your local area network (LAN) or internet. ... With datAxe you can also create virtual ports and configure them to communicate with TCP/IP-networks.
http://www.labf.com/download/dataxe.exe - 4Mb - Download - Screenshot

Serial Port Monitoring Control
Serial Port Monitoring Control (SPMC) - RS232 Data Acquisition and Com Port Control Component Library, Modem Access Component. Connection Sniffer and Port Test Software Library. The library lets you enumerate all installed serial devices, including, but not limited to serial ports and modems. ... All kind of PnP serial devices as well as virtual devices are also supported. ... You can also detach from the device at any time. ... Supporting a wide variety of programming languages and platforms, the SPMC library makes it very easy to start using it in your software project.
http://www.hhdsoftware.com/Download/hhdspmc.exe - 470Kb - Download - Screenshot

Serial Timer
Use Serial timer to easily communicate with external appliances on an RS232 connection. Serial timer has powerful features similar to the timer software that Work with all types of serial ports, including USB adaptors, Wireless Device Servers or any virtual port. ... Output 8 can have up to 10 switching times within the 24hr period from 00:00:00 to 23:59:59. ... All outputs have an additional pulse timer from 1 second to 24 hours (set in minutes), on or off. ... 11pm Friday to 2am Saturday, by selecting start and finish days.
http://www.hottimesoftware.com/Download_Serial_Timer100Trial.exe - 116Kb - Download - Screenshot

MarshallSoft GPS Component for Visual Basic
The MarshallSoft GPS Component VB (MGC4VB) library toolkit reads and decodes industry standard GPS NMEA 183 sentences from the RS232 serial port as well as computing great circle distances and bearings. Features of MGC4C include: The most current GPS data is always available on demand * Runs as... com/mgc4c. ... The C/C++/C# version (which used the same DLL as the C/C++ version) can be downloaded from http://www. ... The Win/CE (Pocket PC) version can be downloaded from http://www. ... com/mgc4evc.
ftp://ftp.marshallsoft.com/pub/windows/mgc4vb14.zip - 233Kb - Download - Screenshot

MarshallSoft GPS Component for C/C++
The MarshallSoft GPS Component C/C++ (MGC4C) library toolkit reads and decodes industry standard GPS NMEA 183 navigation sentences from the RS232 serial port as well as computing great circle distances and bearings. Features of MGC4C include: The most current GPS data is always available on... htm. ... com/mgc4c. ... The Visual Basic version (which used the same DLL as the C/C++ version) can be downloaded from http://www. ... com/mgc4vb. ... com/mgc4evc. ... The Win/CE (Pocket PC) version can be downloaded from http://www.
ftp://ftp.marshallsoft.com/pub/windows/mgc4c14.zip - 294Kb - Download - Screenshot