README.TXT: Using HIMEM.SYS

• Microsoft Windows with Multimedia Extensions, version 1.0

SUMMARY

The following information is contained in the Windows with Multimedia Extensions version 1.0 README.TXT file. The Setup program copies this file to the Windows with Multimedia Windows directory.

This information does not apply to later versions of Windows.

MORE INFORMATION

Using HIMEM.SYS
---------------

HIMEM.SYS is a driver required by Windows 3.0 for using extended
memory. It must be included in your CONFIG.SYS file. The method HIMEM
uses to access extended memory depends on your hardware.

When you boot your computer, HIMEM is loaded from your CONFIG.SYS
file. After it is loaded, you will see a message like the following
telling you the method HIMEM will use to access extended memory on
your computer.

  Installed A20 handler number X.

where X is 1 through 8 which corresponds to one of the following
methods:

      Number   Name               Computer type
  --------------------------------------------------------------
        1        at               ; IBM AT or 100% compatible.
        2        ps2              ; IBM PS/2
        3        ptlcascade       ; Phoenix Cascade BIOS
        4        hpvectra         ; HP Vectra (A & A+)
        5        att6300plus      ; AT&T 6300 Plus
        6        acer1100         ; Acer 1100
        7        toshiba          ; Toshiba 1600 & 1200XE
        8        wyse             ; Wyse 12.5 Mhz 286


If HIMEM does not work properly, you can try a different method.
Specify the switch for your computer type on the device=HIMEM.SYS line
in your CONFIG.SYS file. Computer type corresponds to either the
number or the name of your computer from the table.

For example the following lines are equivalent:

  device=c:\himem.sys /M:ps2
  device=c:\himem.sys /M:2

This entry forces HIMEM to use the IBM PS/2 A20 method for
accessing extended memory. 

Additional query words: MMWIN kbmm readme

Keywords :
Version : :1.0
Platform :
Issue type :