Hi
I have lots of experience of working on com ports with c winapi programming. I have done 3 projects which involve serial port read write. I have done it for Rs-232 and Bluetooth. I can make this app for you using C/C++ or C# which ever suits you. Kindly provide more details about the data to be gathered and com/usb ports. Looking forward to hear from you.
Regards
I have lots of experience using up to 16 serial ports from a Windows PC communicating to embedded processors in a real time system.
Let me know more information before I can bid accurately
Regards
Stewart