MS-DOS Application Using Novell IPX API May Leak Memory in NTVDM

This article was previously published under Q186131
This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
You have an MS-DOS application running under Windows NT 4.0. Theapplication uses Novell IPX API to talk to its communication partners. Whenthe application runs for a long time, you find that virtual memoryconsumption of Ntvdm.exe is steadily increasing.

The sample application IPXPNG from the Novell API also shows this behavior,but it leaks very slowly.
RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
MORE INFORMATION
Using a modified IPXPNG application, you see a leak of 6 bytes perexecution, calling the functions in a tight loop:

IPXListenForPacket
IPXCancelEvent
novel
Properties

Article ID: 186131 - Last Review: 10/08/2013 02:50:15 - Revision: 2.2

  • Microsoft Windows NT Server 4.0, Terminal Server Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix KB186131
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