I am writing in C and using using VC++ 2008, .net 3.5 sp1 framework using a USB - to serial converter for serial port -- it comes up as COM4 on Windows 7 x64 as the operating system.

Need to read and write to a circuit board which gives out continuous output on the serial port.

I also do not know the header files to include in my main program to get the code to work.


Thanks,