Microsoft KB Archive/327752

= Some Winsock Functions May Cause a High CPU Load =

Article ID: 327752

Article Last Modified on 2/19/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3

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This article was previously published under Q327752



SYMPTOMS
Some Winsock functions may cause a high CPU load. These functions include GetSockOpt, SetSockOpt, and GetPeerName.



CAUSE
This is caused by a problem in the Msafd.dll DLL.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

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 about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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 typical 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 has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version        Size     File name 19-Nov-2001 23:42  5.0.2195.4667  118,896  Afd.sys 16-Aug-2002 22:19  5.0.2195.6020  105,232  Msafd.dll 25-Jul-2002 01:03  5.0.2195.5975  313,264  Tcpip.sys 31-Jul-2001 03:15  5.0.2195.3988   16,240  Tdi.sys 16-Aug-2002 22:19  5.0.2195.4874   17,680  Wshtcpip.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows 2000 Service Pack 4.



MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

Keywords: kbbug kbfix kbwin2000presp4fix kbqfe kbnetwork kbwin2ksp4fix kbhotfixserver KB327752

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