TH> I am trying to send 'AT' commands to a modem. "fopen" doesn't seem to
 TH> work. Can someone post a snippit of code demonstrating how to open a
 TH> port to COM3: and sending AT commands to it. A com port library is
 TH> fine. I don't have any on file.
Depends on your OS.  For example, under Linux, OS/2, and likely Win32, fopen 
would work.  Under DOS, however, you need to either get a com port library, 
learn how to use a FOSSIL, or learn how to deal with the serial port on a low 
level (via outportb/inportb).
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