This article was previously published under Q301952
This article has been archived. It is offered "as is" and will no longer be updated.
Performance may be adversely affected when your Windows 2000-based computer accesses files on a server that is running an earlier version of Windows, or non-Microsoft Windows NT-based server (such as Microsoft Windows 98-based clients with file sharing enabled, or Samba Servers).
Specifically, programs that access files across the network may not benefit from the performance advantage of using opportunistic locks. Please refer to the "More Information" section of this article.
This problem can occur because when a file is opened on a server that is running an earlier version of Windows, the redirector does not set the proper flags to request opportunistic locking in an OpenAndX SMB.
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 theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The English version of this fix should have the following file attributes or later:
Date Time Version Size File name ------------------------------------------------------ 09-Jul-2001 15:31 5.0.2195.3835 369,168 Mrxsmb.sys 09-Jul-2001 15:31 5.0.2195.3835 131,792 Rdbss.sys
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 Windows 2000 Service Pack 3.
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:
249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes
For additional information about oplocks, click the article number below to view the article in the Microsoft Knowledge Base:
129202 Explanation of Opportunistic Locking on Windows NT