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How do I set up expanded and extended memory?

 

Please view my Notices page before viewing this area, it is not complete!
This is work in progress.

 

To make extended memory available you will need to load an extended memory manager (HIMEM.SYS or equivalent). The simplest way of loading HIMEM.SYS is to add the following line to your CONFIG.SYS file:

DEVICE=HIMEM.SYS

But that is assuming that you have the file HIMEM.SYS in the root of the drive you are booting from. With Windows 9X you will probably require:

DEVICE=C:\WINDOWS\HIMEM.SYS

With prior versions of DOS the file was in the DOS directory so you'd need:

DEVICE=C:\DOS\HIMEM.SYS

You may need to use some parameters as well, look up HIMEM.SYS in my DOS Reference for more details.

 

To make expanded memory available you will need to load an expanded memory manager like EMM386.EXE (you need to load HIMEM.SYS first). You can load EMM386.EXE simply by adding:

DEVICE=EMM386.EXE

To you CONFIG.SYS file. This example again assumes that EMM386.EXE is in the root of the drive you are booting from, if not you will need to specify its location as before (normally C:\WINDOWS\EMM386.EXE on Windows 9X machines).
Once more you should look up HIMEM.SYS in my DOS Reference for more options.

 


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