Heap Damage in Netdde.exe (290701)

The information in this article applies to:

Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Professional

This article was previously published under Q290701

SYMPTOMS

Heap damage can occur in Netdde.exe. When this occurs, there may be an access violation in RtlAllocateHeap and there may be an "eventvwr" message similar to the following message associated with this error:

Unable to add 3e5 to DDE msg queue. Conversation terminated.

CAUSE

This problem occurs because there is a race condition occurring in the NetDDE termination routine.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English-language version of this fix should have the following file attributes or later:

   Date        Time    Size     File name
   ---------------------------------------
   10/02/2000  05:56p  115,984  Netdde.exe

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.

MORE INFORMATION

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Modification Type:	Major	Last Reviewed:	11/14/2003
Keywords:	kbbug kberrmsg kbfix kbWin2000PreSP2Fix KB290701