Symptoms

Assume that you start a Windows Explorer (Explorer.exe) process in Separate mode on a computer that is running Windows Vista or Windows Server 2008. Then, you map a new network drive or disconnect an existing network drive in this Explorer.exe process. In this situation, the network drive mapping status is not updated.

Note This issue occurs even if you try to manually update the network drive mapping status.

Cause

This issue occurs because Explorer.exe cannot create a desktop window if it is running in Separate mode.

Without a desktop window, the Shell32.dll module must enumerate all the drives in order to display a new network drive mapping status. To do this, the Shell32.dll module first detects whether a desktop window is present or not. However, if there is no desktop window and the Shell32.dll module is running in the Explorer.exe process, the function that determines whether to enumerate the drives assumes that Explorer.exe starts a new desktop window. Therefore, the Shell32.dll module does not enumerate the drives, but Explorer.exe that is running in Separate mode cannot create a new desktop window. In this situation, the network drive mapping status is not updated. 

Resolution

Hotfix information

A supported hotfix is 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows Vista Service Pack 2 (SP2) or Windows Server 2008 Service Pack 2 (SP2).

For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

Registry information

To apply the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Explorer-ppdlic.xrm-ms

Not Applicable

3,034

09-Feb-2012

14:44

Not Applicable

Explorer.exe

6.0.6002.22794

2,926,080

09-Feb-2012

13:43

x86

Shell32.dll

6.0.6002.22794

11,588,096

09-Feb-2012

14:56

x86

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

File name

File version

File size

Date

Time

Platform

Explorer-ppdlic.xrm-ms

Not Applicable

3,034

09-Feb-2012

15:57

Not Applicable

Explorer.exe

6.0.6002.22794

3,078,656

09-Feb-2012

14:40

x64

Shell32.dll

6.0.6002.22794

12,901,376

09-Feb-2012

16:17

x64

Explorer.exe

6.0.6002.22794

2,926,080

09-Feb-2012

13:43

x86

Shell32.dll

6.0.6002.22794

11,588,096

09-Feb-2012

14:56

x86

For all supported IA-64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Explorer-ppdlic.xrm-ms

Not Applicable

3,034

09-Feb-2012

17:00

Not Applicable

Explorer.exe

6.0.6002.22794

3,906,048

09-Feb-2012

16:08

IA-64

Shell32.dll

6.0.6002.22794

19,091,456

09-Feb-2012

17:11

IA-64

Explorer.exe

6.0.6002.22794

2,926,080

09-Feb-2012

13:43

x86

Shell32.dll

6.0.6002.22794

11,588,096

09-Feb-2012

14:56

x86

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, 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 file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008

File name

X86_microsoft-windows-explorer_31bf3856ad364e35_6.0.6002.22794_none_53c778b79045aae1.manifest

File version

Not Applicable

File size

127,220

Date (UTC)

09-Feb-2012

Time (UTC)

15:10

Platform

Not Applicable

File name

X86_microsoft-windows-shell32_31bf3856ad364e35_6.0.6002.22794_none_6e3bfc83288529e1.manifest

File version

Not Applicable

File size

904,280

Date (UTC)

09-Feb-2012

Time (UTC)

15:10

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008

File name

Amd64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6002.22794_none_afe6143b48a31c17.manifest

File version

Not Applicable

File size

127,288

Date (UTC)

09-Feb-2012

Time (UTC)

16:32

Platform

Not Applicable

File name

Amd64_microsoft-windows-shell32_31bf3856ad364e35_6.0.6002.22794_none_ca5a9806e0e29b17.manifest

File version

Not Applicable

File size

906,212

Date (UTC)

09-Feb-2012

Time (UTC)

16:32

Platform

Not Applicable

File name

Wow64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6002.22794_none_ba3abe8d7d03de12.manifest

File version

Not Applicable

File size

124,461

Date (UTC)

09-Feb-2012

Time (UTC)

15:02

Platform

Not Applicable

File name

Wow64_microsoft-windows-shell32_31bf3856ad364e35_6.0.6002.22794_none_d4af425915435d12.manifest

File version

Not Applicable

File size

899,183

Date (UTC)

09-Feb-2012

Time (UTC)

15:02

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File name

Ia64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6002.22794_none_53c91cad9043b3dd.manifest

File version

Not Applicable

File size

127,254

Date (UTC)

09-Feb-2012

Time (UTC)

17:20

Platform

Not Applicable

File name

Ia64_microsoft-windows-shell32_31bf3856ad364e35_6.0.6002.22794_none_6e3da079288332dd.manifest

File version

Not Applicable

File size

906,144

Date (UTC)

09-Feb-2012

Time (UTC)

17:20

Platform

Not Applicable

File name

Wow64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6002.22794_none_ba3abe8d7d03de12.manifest

File version

Not Applicable

File size

124,461

Date (UTC)

09-Feb-2012

Time (UTC)

15:02

Platform

Not Applicable

File name

Wow64_microsoft-windows-shell32_31bf3856ad364e35_6.0.6002.22794_none_d4af425915435d12.manifest

File version

Not Applicable

File size

899,183

Date (UTC)

09-Feb-2012

Time (UTC)

15:02

Platform

Not Applicable

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