The description below is from the book DOS the
Easy Way by Everett Murdock Ph.D.
CLICK HERE
for information about downloading the book.
Type: External (5.0 and later)
Syntax:
DELOLDOS [/B]
Purpose: Deletes all files from previous versions of DOS after a
5.0 or
6.0 installation.
Discussion
During an upgrade installation of DOS 5.0 or 6.0, your previous version
of DOS
is stored in a directory named OLD_DOS.1 and on uninstall disks created
by the
DOS Setup program. After you have finished installing and testing the
new
version of DOS, you can delete your old version of DOS by using the
DELOLDOS
command. Once you have used the DELOLDOS command, you will not be able
to
restore your previous version of DOS from the Uninstall disks so be sure
that
the new version of DOS works on your computer before using this command.
Also,
the DELOLDOS command will delete itself from your disk once it has
finished
deleting your old version of DOS.
Options
/B - Specifies a black-and-white screen mode. Used with LCD displays
or when
using a monochrome monitor attached to a CGA adapter.
For more information about this command, refer to the downloadable book DOS the Easy Way.
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Easy DOS Command Index