16-Bit Programs Hang Using Dynamic Data Exchange

ID: Q242283

The information in this article applies to:

Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0

SYMPTOMS

A 16-bit Windows-on-Windows (WOW) subsystem may stop responding (hang) when you are running multiple Dynamic Data Exchange (DDE) programs.

CAUSE

This behavior can occur if a 16-bit Windows-based program using DDE is terminated while a second 16-bit Windows-based program is enumerating the active DDE program list. This causes the second program to hang, stopping the whole WOW subsystem.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:

http://www.microsoft.com/windows/servicepacks/

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. 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://www.microsoft.com/support/supportnet/overview/overview.asp

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 6.

Additional query words:

Keywords : kbbug4.00 kbfix4.00 NT4SP6Fix
Version : winnt:4.0
Platform : winnt
Issue type : kbbug