Microsoft KB Archive/326826

= Some Programs May Be Slow When Accessing Files on a Network Share =

Article ID: 326826

Article Last Modified on 12/1/2007

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APPLIES TO


 * Microsoft Windows XP Professional x64 Edition
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Media Center Edition 2002
 * Microsoft Windows XP Tablet PC Edition
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q326826



SYMPTOMS
Any program that uses files on a network share may seem to run slowly while the program is accessing large files across the network. The program may seem to take longer to start, or may seem to stop responding (hang) as it accesses large files across the network.



CAUSE
There is a problem with the redirector in which the redirector may remove a file from the cache although there are open handles to the file. This occurs when the redirector does not collapse an open call.



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 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. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends 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 --    05-Nov-2002  14:35   5.0.2195.6114  371,536  Mrxsmb.sys 05-Nov-2002 14:35   5.0.2195.6114  132,944  Rdbss.sys Note This fix requires Windows 2000 Service Pack 3 (SP3).

Windows XP
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 XP 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 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 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. Windows XP

Date        Time   Version            Size    File name --  23-Jan-2003  15:31  5.1.2600.1161     399,488  Mrxsmb.sys 23-Jan-2003 15:31  5.1.2600.1161     154,880  Rdbss.sys

Windows XP 64-Bit Edition

Date        Time   Version            Size    File name --  23-Jan-2003  15:31  5.1.2600.1161   1,256,192  Mrxsmb.sys 23-Jan-2003 15:31  5.1.2600.1161     489,088  Rdbss.sys Note This fix requires Windows XP Service Pack 1 (SP1).



Windows 2000
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.

Windows XP
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
For additional information about more recent redirector fixes for Windows 2000 and Windows XP, click the following article numbers to view the articles in the Microsoft Knowledge Base:

812937 File Lock or Access Denied Error Message When You Save Files Over the Network

816036 Windows 2000 Crashes with a &quot;Stop 0x000000d1&quot; Error Message

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

Additional query words: rdr

Keywords: kbhotfixserver kbqfe kboswin2000fix kbwin2ksp4fix kbbug kbfix kbwin2000presp4fix KB326826

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