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Microsoft KB Archive/106129

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Err Msg Running MemMaker: EMM386 DMA Buffer Is Too Small...

Article ID: 106129

Article Last Modified on 11/18/1999


  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.21 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition

This article was previously published under Q106129


You may receive the following error message when you run MemMaker:

EMM386 DMA Buffer is too small. Add D=48 parameter and reboot.


This problem occurs when you are running:

  • Qemm instead of EMM386.EXE version 4.48 (which is included with MS-DOS 6.2).
  • EMM386.EXE version 4.44 (which is included with Windows 3.1).


To work around this problem:

  • Change the EMM386.EXE command in your CONFIG.SYS file to correctly reference the version supplied with MS-DOS 6.2, and then run MemMaker. For an example of this command, see step 2 in the procedure below. -or-

  • Replace the Qemm commands with the correct MS-DOS commands for HIMEM.SYS and EMM386.EXE and then run MemMaker. To do so:

    1. Edit the CONFIG.SYS file and remove the Qemm statements to disable Qemm.
    2. Add DEVICE commands for HIMEM.SYS and EMM386.EXE (including the D=48 parameter). For example:

      device=c:\dos\emm386.exe d=48

    3. Reboot your computer and run MemMaker.

Additional query words: 6.22 6.20 "qemm version 6.02"

Keywords: KB106129