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XCLONE.DOC
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1992-01-12
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XCLONE - Copy Utility for XPORT.EXE
Version 1.2
Copyright (C) 1992 by Digital Innovations
All rights reserved.
If you would like to use XPORT, the D. I. File Transporter,
but you don't already have a way to transfer files between two
systems with different disk sizes, or incompatible disk formats
(or the program you do have just WON'T WORK), this utility will
allow you to get XPORT.EXE to the system that doesn't have it.
All you need on the inaccessible system is your DOS disk, with the
files MODE.COM and DEBUG.COM. Just run XCLONE on the system that
has XPORT.EXE on it, and follow the simple directions.
Basically, you will be following these steps:
1) Connect a null modem cable to both systems.
2) Run XCLONE on the source system (be sure XPORT.EXE is in the
same directory as XCLONE).
3) Boot the other system - should be at the DOS prompt.
4) Type "MODE COMx:96,N,8,2", followed by ENTER, then type "CTTY
COMx", followed by ENTER on the other system - its console
will now be redirected to the specified serial port.
(The 'x' in COMx is the port number that the cable is
connected to, COM1 or COM2).
5) Hit any key on the source system. XCLONE will ask you to
verify the destination drive and directory. If you approve
the destination, it will create a copy of XPORT.EXE on the
other system's disk.
XCLONE takes control of the target system, runs DEBUG, sends
a short loader program to it, starts it up and transfers the
contents of XPORT.EXE into the target system's memory (the
transfer and verification process takes less than a minute). It
then commands DEBUG to write the data to the disk, and names the
resulting file XPORT.EXE.
The cable that you use must include a connection between the
DTR output on the source system and the DSR input on the target;
this is required by the DOS CTTY function. On 25-pin connectors,
DTR is pin 20 and DSR is pin 6. On 9-pin connectors, DTR is pin 4
and DSR is pin 6. Or, you can just connect DTR to DSR on the
target system end of the cable - that makes CTTY happy, too. On
some systems, either MODE or CTTY doesn't appear to enable DTR,
however; in this case, try doing a copy of a short file, such as
CONFIG.SYS, to the port using COPY FILENAME.EXT COMx, before
issuing the CTTY COMx command. DTR should then be enabled,
allowing CTTY to work.
Helpful tip: If for some reason you have XPORT on one
system, and XCLONE on the other, and you need to get XCLONE itself
to the other system, you can transfer XCLONE disguised as XPORT.
Just copy XCLONE.COM to XPORT.EXE, run XCLONE, and let it transfer
its disguised copy. Once transferred, you can then rename it to
XCLONE.COM on the other system.
Ken Logsdon
Digital Innovations