DDEML: Memory Leak in Global Shared Memory (170626)



The information in this article applies to:

  • Microsoft Windows NT Server 4.0 Terminal Server Edition
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 4.0

This article was previously published under Q170626

SYMPTOMS

A DDEML client performing frequent Connect/Advise operations alternating with frequent Unadvise/Disconnects on the same server, topic, or item may cause the server to leak globally shared memory. The leakage will progress until there will be insufficient resources to run any applications besides the server. At this point, the server must be closed to free up memory.

CAUSE

When the client DDEML window is destroyed by a call to DdeDisconnect, there are still posted messages in the queue to this window, causing this leak.

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.

Modification Type:MajorLast Reviewed:6/29/2004
Keywords:kbbug kbfix KB170626