I am looking for C++ (or dos)source code to send and receive info over a com port. How do I acces and turn on the com port and set the baud rate? Specifically on an HP200lx palmtop computer. I am trying to download information to the palmtop, the program is very low level and the dos interupt is not working. It is intended for a CMT datalogger but I am trying to adapt it to the HP, and it needs the COM port address.