easy to use professional serial communication c++ class library for windows. comm-drv++ allows you to accomplish your serial communication task literally in minutes after installation. we have encapsulated general communication functions into easy to understand methods that are applicable to real world applications . the following example is a complete working windows application that calls another computer and transfers a file to it. could it be any simpler? #include "ccdrvppport.h" main() { ccdrvppport port; if (!port.openport(1)) if (!modemdial("2815551212") if (!port.sendfilezmodem(filexferdialogflagon ,"myfile.txt") cout << "file transferred successfully"; port.closeport(); } major features: *comm-drv++ is compatible with windows xp, windows me, windows 2000, windows 98, and windows 95. *comm-drv++ supports the microsoft visual c++ and borland c++ compilers. *comm-drv++ supports all serial ports that have a windows driver. these include all intelligent and non-intelligent multiport cards, usb serial port hubs and modems, pcmcia serial ports, or any permutation thereof (e.g., digi international, advantech, connect tech, lava, etc.). *comm-drv++ supports the zmodem (w/crash recovery), xmodem (crc & checksum), and ymodem (batch, 1k, g). *comm-drv++ supports communications on any number of serial ports concurrently. *comm-drv++ supports hardware handshaking (rts/cts, dtr/dsr), and software handshalking *comm-drv++ supports adjustable communication buffers of any size. *comm-drv++ supports multiple string/token searches of any size. *comm-drv++ supports all hayes compatible modems. *comm-drv++ has manual completely online and easily accessable. (hardcopy available as well).