PE> What did you hope that "CRC" would look like when printed
to the screen?

PW> Like a CRC?

What does a CRC look like?

PW> or to a COM port?
PE> You "need" comms routines to do that.  Various unsavoury
people would
PE> attempt to write to stdaux or open file "COM3", but invariably they
PE> will fail.  FREQ "PDCOMM" from 3:711/934.  While it lasts.  BFN. 

PW> Why won't it work?  You'd just be writing a byte to a stream, wouldn't you?

What stream?  For starters I've got 4 COM ports, and under DOS, no-one
knows what IRQ or I/O port or speed or flow control they are operating at. 
BFN.  Paul.
@EOT:

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