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

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Article ID: 186131 - View products that this article applies to.
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SYMPTOMS

You have an MS-DOS application running under Windows NT 4.0. The application uses Novell IPX API to talk to its communication partners. When the application runs for a long time, you find that virtual memory consumption 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 the Microsoft 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 per execution, calling the functions in a tight loop:

IPXListenForPacket
IPXCancelEvent

Properties

Article ID: 186131 - Last Review: October 8, 2013 - Revision: 2.2
APPLIES TO
  • 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
Keywords: 
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix KB186131

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