Microsoft KB Archive/840500

= The SfcGetNextProtectedFile function may return corrupted data in Windows 2000 =

Article ID: 840500

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
When a program uses the SfcGetNextProtectedFile function to retrieve file data through the Windows File Protection (WFP) feature in Microsoft Windows 2000, the SfcGetNextProtectedFile function may return corrupted data to this program. A program that uses the SfcGetNextProtectedFile function may fail unexpectedly.



CAUSE
This problem occurs if the file name that is returned by the SfcGetNextProtectedFile function is longer than the MAX_PATH length setting. In this situation, the FileName buffer might be exceeded, and this could lead to memory corruption.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone 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 usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
To install this hotfix, you must have Microsoft Windows 2000 Service Pack 3 (SP3) or later installed on your computer.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix 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 --  13-Apr-2004  01:44  5.0.2195.6920      94,968  Sfc.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: Win2k Win2000

Keywords: kbqfe kbhotfixserver kbbug kbfix kbwin2000presp5fix KB840500

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