oem.hlp (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
EMM386
Notes
────────────────────────────────────────────────────────────────────────────
 
                                   EMM386
 
Enables or disables EMM386 expanded-memory support on a computer with an
80386 or higher processor. The EMM386 command also enables or disables
Weitek coprocessor support. Do not use this command when Windows is
running.
 
The EMM386 device driver, EMM386.EXE, provides expanded-memory support and
also provides access to the upper memory area. For information about
EMM386.EXE, see <EMM386.EXE>.
 
Syntax
 
    EMM386 [ON|OFF|AUTO] [W=ON|W=OFF]
 
To display the current status of EMM386 expanded-memory support, use the
following syntax:
 
    EMM386
 
Parameters
 
ON|OFF|AUTO
    Activates the EMM386 device driver (if set to ON), or suspends the
    EMM386 device driver (if set to OFF), or places the EMM386 device driver
    in auto mode (if set to AUTO). Auto mode enables expanded-memory support
    only when a program calls for it. The default value is ON.
 
W=ON|W=OFF
    Enables (if set to W=ON) or disables (if set to W=OFF) Weitek
    coprocessor support. The default value is W=OFF.
 
                                      ♦