GetHostByName() Returns IP Address of Disabled Interface (216091)
The information in this article applies to:
- Microsoft Windows NT Server 4.0 SP4
- Microsoft Windows NT Server, Enterprise Edition 4.0 SP4
- Microsoft Windows NT Workstation 4.0 SP4
This article was previously published under Q216091 SYMPTOMS
In Windows NT 4.0, it is possible to set up multiple hardware profiles using the Devices tool in Control Panel. The device for the network interface card (NIC) can be disabled on a per-profile basis.
In such a scenario, Sockets-based applications running on Windows NT 4.0 Service Pack 4 may fail unexpectedly. This problem has been observed in NetShow and Microsoft Exchange applications. The problem can also occur on multihomed computers where one of the NICs is disabled.
CAUSE
This problem occurs because the GetHostByName() API returns the old IP address owned previously by the disabled NIC.
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:
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:
This hotfix has been posted to the following Internet location as Rnr-fixi.exe (x86) and Rnr-fixa.exe (Alpha): STATUSMicrosoft has confirmed that this is a problem in Windows NT 4.0 Service Pack 4. This problem was first corrected in Windows NT version 4.0 Service Pack 5.
| Modification Type: | Minor | Last Reviewed: | 9/23/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbfix kbQFE KB216091 |
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