|Accessing serial port is an interrupt driven process that requires a programming language to be implemented. I do not know Clipper scripting, but I may suggest to take a look to the PUTTY tool (Google for it).|
PUTTY is a free tool much like HyperTerminal but it allows to be driven by scripting. You can catch your data into a txt file then access them by Clipper. I never used it, but people report it is higly effective.
By my own I have a legacy lab application developed under DOS but workung fine under Windows XP SP3 too to access data from a serial port, but that needs to be customized and anyway exact info about data exchange process is needed.