Microsoft KB Archive/935453

= Error message when you try to access a mapped drive in Windows Server 2003: &quot;Access denied&quot; =

Article ID: 935453

Article Last Modified on 10/11/2007

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APPLIES TO

 Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86) Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86) Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86) Microsoft Windows Server 2003 R2 Standard x64 Edition Microsoft Windows Server 2003 R2 Enterprise x64 Edition Microsoft Windows Server 2003 R2 Datacenter x64 Edition Microsoft Windows Server 2003 Service Pack 2, when used with:  Microsoft Windows Server 2003, Standard Edition (32-bit x86)</li></ul>

<ul> Microsoft Windows Server 2003, Enterprise Edition</li></ul>

<ul> Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

<ul> Microsoft Windows Server 2003, Web Edition</li></ul>

<ul> Microsoft Windows Server 2003, Standard x64 Edition</li></ul>

<ul> Microsoft Windows Server 2003, Enterprise x64 Edition</li></ul>

<ul> Microsoft Windows Server 2003, Datacenter x64 Edition</li></ul>

<ul> Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems</li></ul>

<ul> Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul> </li> Microsoft Windows Server 2003, Standard x64 Edition</li> Microsoft Windows Server 2003, Enterprise x64 Edition</li> Microsoft Windows Server 2003, Datacenter x64 Edition</li> Microsoft Windows Server 2003 SP1, when used with: <ul> Microsoft Windows Server 2003, Standard Edition (32-bit x86)</li></ul>

<ul> Microsoft Windows Server 2003, Enterprise Edition</li></ul>

<ul> Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

<ul> Microsoft Windows Server 2003, Web Edition</li></ul>

<ul> <li>Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems</li></ul>

<ul> <li>Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul> </li></ul>

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<div class="symptoms_section">

SYMPTOMS
You map a drive letter to a Universal Naming Convention (UNC) path by using different user credentials than the credentials that you used to log on. Then, you log off. After you log on again, you cannot access the mapped drive. You receive the following error message:

Access denied.

This problem occurs on a computer that is running Microsoft Windows Server 2003 with Service Pack 1, Windows Server 2003 with Service Pack 2, or an x64-based version of Windows Server 2003.

<div class="cause_section">

CAUSE
This problem occurs because the user credentials are not saved for the mapped drive. When the system tries to reconnect the mapped drive to the UNC path, the system uses the current logon credentials. If the current logon credentials do not have access permissions to the UNC path, the system cannot reconnect the mapped drive to the UNC path.

<div class="resolution_section">

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 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
No prerequisites are required.

Restart requirement
You must restart the Workstation service 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 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 Server 2003 with Service Pack 1, Itanium-based versions
<div class="status_section">

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

<div class="moreinformation_section">

MORE INFORMATION
For more information about the terms that are used to describe software updates, 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: alternate credentials drives

Keywords: kberrmsg kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver kbwinserv2003postsp2fix KB935453

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