Epson 3865X Plus - Manual (Page 95)

You should use high speed for almost everything you do since
your programs work faster on high speed. However, certain
application programs have specific timing requirements for
diskette access and can run only at the slower speed. See the
manual for your application program to determine if this is the
case.
Some copy-protected application programs require the
computer to run at the low speed while accessing the program
on a diskette. These programs also usually require you to leave a
key disk-the diskette that contains the copy protection-in
the diskette drive. If you use a copy-protected program often,
you may want to set your processor speed to change
automatically to low speed when accessing the diskette, and
return to high speed when it is finished.
There are different types of copy-protected programs.
Depending on the type you have, you may or may not want to
set the processor to automatic speed. Follow these guidelines:
If you are using a copy-protected program that can run only
on a diskette or that requires a key disk, try to start the
program on high speed. If this works, you do not need to set
the speed to change automatically. If you can’t load the
program on high, set the speed to change automatically.
If you are using a copy-protected program that does not
require a key disk but requires a special procedure to install
the program on a hard disk, set the speed to low while you
are installing the program. Once it is installed, set the speed
to high, where you should be able to leave it while you load
and run the program.
If this does not work, try installing and loading the program
at low speed and then change to high speed to run it. Do
not set the speed to change automatically.
Enhancing System Operations 4-3