Resource Leaks Through Iphlpapi.dll in Windows NT 4.0 (241480)



The information in this article applies to:

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

This article was previously published under Q241480

SYMPTOMS

When the program you are using loads or unloads the Iphlpapi.dll file on your computer running Windows NT 4.0 (for example, by a Winsock 2.0 layered service provider), a system resource leak may occur, especially a memory or a handle leak.

CAUSE

This behavior occurs because part of the source code for the Iphlpapi.dll file causes a leak in the file handle created in OpenIpDriver() and in three critical sections allocated in the DLL Entry function.

RESOLUTION

Windows NT Server or Workstation 4.0

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:
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:

Windows NT Server 4.0, Terminal Server Edition

To resolve this problem, obtain the latest service pack for 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 Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6.

Modification Type:MinorLast Reviewed:6/5/2006
Keywords:kbHotfixServer kbQFE kbbug kbfix kbinterop KB241480