[net.micro.pc] DOS 2.0 Hacking

pete%LBL-CSAM@vortex.UUCP (08/03/83)

From:  Pete Carah <vortex!pete@LBL-CSAM>

1.  The /dev directory doesn't really exist as a directory.  The
open/close routines handle it if presented with the name (and insist
on it if you put AVAILDEV F in your config).  Don't put AVAILDEV F in
config if you expect to use older programs (e.g.  MASM) to send output
to a device.

2.  SWITCHAR affects DOS and COMMAND but not any older application
programs.  In 2.0 there is a system call to interrogate the switch
character, but not all applications use it.

The problem with RESTORE is a genuine bug - they interrogate SWITCHAR
but proceed to ignore it in one critical place.  I have patched
RESTORE to get around the problem for backups taken with SWITCHAR -,
but then it won't restore backups taken with the normal /.

                            Pete