Microsoft KB Archive/937357

= Error message after you try to access a mapped network drive when you work offline on a Windows XP-based computer: &quot;Drive_Letter:\ is not accessible&quot; =

Article ID: 937357

Article Last Modified on 10/26/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
Consider the following scenario:
 * On a Windows XP-based client computer, you map a network drive from a Distributed File System (DFS) network share.
 * You make the network drive available offline.
 * You log back on to the computer by using cached credentials, and then you work offline.

When you try to access the mapped network drive in this scenario, you receive the following error message:



Note When you receive this error message, you can view the properties of the network drive. After you do this, you can successfully access the network drive.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might 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, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

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

Prerequisites
You must have Windows XP Service Pack 2 installed on the computer.

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

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

Registry information
To use this hotfix, you do not have to make any changes to the registry.

File information
The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.

Windows XP with SP2, x86-based versions


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 more information about how to use offline files in Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

307853 How to use offline files in Windows XP

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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

Additional query words: csc dfs configuration information

Keywords: kbexpertiseadvanced kbfix kbpubtypekc kbqfe kbhotfixserver KB937357

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