Upgrading to Windows NT 4.0 SP5 causes Stop 0x50 in DFS DosPathName.Length

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Article ID: 248740 - View products that this article applies to.
This article was previously published under Q248740
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Symptoms

After you upgrade your DFS server to Service Pack 5, you may receive a Blue Screen. The stop screen may contain the following text:
Stop 0x00000050 (0x24f0000, 0x00000001, 0x00000000, 0x00000000)

Cause

This issue can occur if your DFS root is set to the root of your drive (c:\).

If you have a program trying to send information across your network to this DFS share referencing it as a relative path, it can pass a bad link and cause your Server to Blue Screen.

Resolution

Windows 2000

To resolve this problem, obtain the latest service pack for 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

Windows NT 4.0

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:
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.

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  Platform
   ------------------------------------------------------------------
   18-Apr-2003 08:30  4.20.1.2          62,128    Dfs.sys    x86
   27-Mar-2003 08:20  4.0.1381.7214    231,312    Srv.sys    x86

   23-Dec-1999 04:22p                  106,576    Dfs.sys    Alpha
   07-Feb-2000 03:49p                  460,688    Srv.sys    Alpha

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows 2000 Service Pack 1.

Properties

Article ID: 248740 - Last Review: November 2, 2013 - Revision: 2.0
Applies to
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
Keywords: 
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kberrmsg kbfix KB248740

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