Epson 386/25 - Manual (Page 72)

Copying the Reference and Utility Files
If you have a hard disk, you’ll probably want to copy some of the
files on your Reference and Utility diskettes to the hard disk.
This allows you to run the programs directly from your hard disk
instead of having to insert a diskette. Use the COPY command
(described in your MS-DOS Reference Manual) to copy the
following files from the Reference diskette to your hard disk:
AFDD.EXE ESPEED.EXE HDSIT.COM
HDSIT.VER ROMBIOS.COM
The Reference diskette also contains files for the Setup program
and the System diagnostics program. However, you should
always run these programs from the Reference diskette in
drive A; so do not copy these files to your hard disk.
The Utility diskettes contain VGA drivers that allow you to
display graphics in certain high-resolution modes. If you want to
use any of these extended modes on your VGA monitor, you’ll
need to copy any VGA files you need to your hard disk as well.
See Appendix A for a list of the VGA drivers and utilities and
instructions for using them.
Note
Be sure to make backup copies of your Reference and Utility
diskettes. See your MS-DOS Reference Manual for
instructions.
3-2 Using Your Computer