On Jan 4 2005, 13:27, Joe R. wrote:
  >>
 >> >From: "Pete Turnbull" <pete(a)dunnington.u-net.com>
 >> >
 >> >
 >> >You can't, in MS-DOS.  COPY uses ASCII transfers for COM ports 
and
  >> >complains if you try to force binary,
because it needs to see a 
ctrl-Z
  > >to
know where the end-of-file is. 
   Use COPY /B to force it to do a Binary copy. (FWIW  /A forces it to 
 do an
  Ascii copy). 
The point is that you CAN'T use the /B switch when one of the files is
actually a device (like COM:).  DOS will not allow that.
--
Pete                                            Peter Turnbull
                                                Network Manager
                                                University of York