DOCUMENT:Q231337
TITLE   :NETDDE.EXE Fails to Relay WM_DDE_TERMINATE to Remote Clients
PRODUCT :Windows NT
PROD/VER:4.0
OPER/SYS:WINDOWS NT
KEYWORD :kbbug4.00 kbfix4.00 

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The information in this article applies to:

 - Microsoft Windows NT Server version 4.0 SP4 
 - Microsoft Windows NT Workstation version 4.0 SP4 
 - Microsoft Windows NT Server, Enterprise Edition version 4.0 SP4 
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SYMPTOMS
========

When a remote client in a DDE conversation with a server running on Windows NT
4.0 Service Pack 4 sends WM_DDE_TERMINATE to the server, Netdde.exe fails to
relay the server's WM_DDE_TERMINATE response back to the remote client.

In addition to causing the client to never receive WM_DDE_TERMINATE, this also
has the undesirable effect of leaving child windows orphaned.

RESOLUTION
==========

A supported fix that corrects this problem is now available from Microsoft, but
it has not been fully regression tested and should be applied only to systems
experiencing this specific problem. If you are not severely affected by this
specific problem, Microsoft recommends that you wait for the next Windows NT 4.0
service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services
to obtain the fix. For a complete list of Microsoft Product Support Services
phone numbers and information on support costs, please go to the following
address on the World Wide Web:

   http://support.microsoft.com/support/supportnet/default.asp

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

   Date      Time                 Size    File name     Platform
   -------------------------------------------------------------
   05/05/99    8:47 PM          118,784   Netdde.exe    (x86)
   05/05/99    8:45 PM          196,608   Netdde.exe    (Alpha)

This hotfix has been posted to the following Internet location as Nddefixi.exe
(x86) and Nddefixa.exe (Alpha):

   ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/
   Hotfixes-PostSP5/NetDDE-fix/

NOTE: If this product was already installed on your computer when you purchased
it from the Original Equipment Manufacturer (OEM) and you need this fix, please
call the Pay Per Incident number listed on the above Web site. If you contact
Microsoft to obtain this fix, and if it is determined that you only require the
fix you requested, no fee will be charged. However, if you request additional
technical support, and if your no-charge technical support period has expired,
or if you are not eligible for standard no-charge technical support, you may be
charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the
following article in the Microsoft Knowledge Base:

   Q154871 Determining If You Are Eligible for No-Charge Technical Support

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0 Service Pack 4.

Additional query words: 4.00 sp4
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