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Microsoft KB Archive/102173

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Knowledge Base

Windows NT Err Msg: Insufficient Extended Memory to Run...

Article ID: 102173

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.1

This article was previously published under Q102173


When running Windows NT, you may receive the following message:

Insufficient extended memory to run in standard mode. Increase available extended memory or run in real mode.


This error message indicates DOSX.EXE (which provides DOS Protected Mode Interface [DPMI] services) was unable to allocate extended memory. This problem occurs when all available virtual memory on the machine has already been allocated.


Close one or more applications or make more disk space available (so that the size of the paging file can be increased).

Additional query words: prodnt free up

Keywords: kb3rdparty kbinterop KB102173