Epson 20 - Manual (Page 111)

3. Type DEVICE=EEMM386.EXE and press Enter.
4. Press the F6 key, and then press Enter.
5. Reboot your computer.
This procedure makes the memory in your computer above 1MB
available to any application program that supports the Lotus/Intel/
Microsoft Expanded Memory Specification 4.0 (LIM EMS 4.0).
About EEMM386.EXE
EEMM386.EXE is an expanded memory manager that supports the
LIM 4.0 expanded memory specification. It does so by using ordinary
memory above 1MB (extended memory) to emulate expanded memory.
The full syntax for the command line that activates EEMM386.EXE
is as follows:
DEVICE=[path]EEMM386.EXE[size][/F]
The items in brackets are optional. Their meanings are as follows:
path is a pathname specification. You need to add the pathname if the
file EEMM386.EXE is not in the root directory of the disk from
which you boot MS-DOS. For example, if you keep EEMM386.EXE
in a directory called \DOS on drive C:, be sure to include the
pathname, like this:
DEVICE=C:\DOS\EEMM386.EXE
size allows you to specify the number of kilobytes of memory above
1MB that EEMM386.EXE uses as expanded memory. If you want
EEMM386.EXE to use all the memory above 1MB, omit this optional
parameter.
/F is an optional switch provided for compatibility with certain
application programs that support earlier versions of the LIM
expanded memory specification but do not support version 4.0. If
your application gives you an error message having to do with
expanded memory, try adding the /F switch, like this:
DEVICE=EEMM386.EXE/F
Using MS-DOS with Your Equity 386 5-33