Netdde.exe Stops Responding When Used from a Service (244056)



The information in this article applies to:

  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server 4.0 SP1
  • Microsoft Windows NT Server 4.0 SP2
  • Microsoft Windows NT Server 4.0 SP3
  • Microsoft Windows NT Server 4.0 SP4
  • Microsoft Windows NT Server 4.0 SP5
  • Microsoft Windows NT Server 4.0 SP6
  • Microsoft Windows NT Server, Enterprise Edition 4.0
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP4
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP5
  • Microsoft Windows NT Server, Enterprise Edition 4.0 SP6
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Workstation 4.0 SP1
  • Microsoft Windows NT Workstation 4.0 SP2
  • Microsoft Windows NT Workstation 4.0 SP3
  • Microsoft Windows NT Workstation 4.0 SP4
  • Microsoft Windows NT Workstation 4.0 SP5
  • Microsoft Windows NT Workstation 4.0 SP6

This article was previously published under Q244056

SYMPTOMS

When using Network dynamic data exchange (DDE) to communicate between a Windows NT service and an interactive application on the same machine, the Netdde.exe service may deadlock. This problem occurs only when multiple connection attempts are rapidly made. The application or service may appear to stop responding (hang), and the task manager will be unable to end Netdde.exe. Attempting to shut down Windows NT will fail unless Netdde.exe has been ended by using a debugger or the Kill utility from the Windows NT Resource Kit.

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:
   Date      Time                 Size    File name     Platform
   -------------------------------------------------------------
   10/15/99  03:28p               118,544 Netdde.exe    Intel
   10/15/99  03:28p               193,296 Netdde.exe    Alpha
				

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

Microsoft has confirmed that this is a problem in Windows NT 4.0.

Modification Type:MinorLast Reviewed:9/26/2005
Keywords:kbHotfixServer kbQFE kbAPI kbbug kbDDE kbfix KB244056