Symptoms

Assume that an application or a service loads and then unloads the Netshell.dll module frequently on a computer that is running Windows Vista or Windows Server 2008. For example, an application frequently queries the Win32_NetworkAdapter WMI namespace. In this situation, the memory usage of the application or the service keeps increasing. With time, the application or the service stops working if available memory resources are exhausted.

Note The Netshell.dll module can be loaded directly or indirectly by an application or a service.

Cause

The issue occurs because a 64-kilobyte (KB) private heap is created when the Netshell.dll module is loaded, and then is leaked when the Netshell.dll module is unloaded.

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 use 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

Netcfgx.dll

6.0.6002.22739

387,072

06-Nov-2011

00:06

x86

Bench_16.bin

Not Applicable

1,112

09-Sep-2011

11:25

Not Applicable

Bench_24.bin

Not Applicable

2,456

09-Sep-2011

11:25

Not Applicable

Bench_32.bin

Not Applicable

4,280

09-Sep-2011

11:25

Not Applicable

Bench_48.bin

Not Applicable

9,560

09-Sep-2011

11:25

Not Applicable

House_16.bin

Not Applicable

1,112

09-Sep-2011

11:25

Not Applicable

House_24.bin

Not Applicable

2,456

09-Sep-2011

11:25

Not Applicable

House_32.bin

Not Applicable

4,280

09-Sep-2011

11:25

Not Applicable

House_48.bin

Not Applicable

9,560

09-Sep-2011

11:25

Not Applicable

Ncpa.cpl

6.0.6002.22739

164,864

06-Nov-2011

00:06

Not Applicable

Netshell.dll

6.0.6002.22739

3,174,400

06-Nov-2011

00:06

x86

Office_16.bin

Not Applicable

1,112

09-Sep-2011

11:25

Not Applicable

Office_24.bin

Not Applicable

2,456

09-Sep-2011

11:25

Not Applicable

Office_32.bin

Not Applicable

4,280

09-Sep-2011

11:25

Not Applicable

Office_48.bin

Not Applicable

9,560

09-Sep-2011

11:25

Not Applicable

Pnidui.dll

6.0.6002.22739

1,823,744

06-Nov-2011

00:07

x86

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

File name

File version

File size

Date

Time

Platform

Netcfgx.dll

6.0.6002.22739

504,832

07-Nov-2011

09:16

x64

Bench_16.bin

Not Applicable

1,112

15-Mar-2011

04:34

Not Applicable

Bench_24.bin

Not Applicable

2,456

15-Mar-2011

04:34

Not Applicable

Bench_32.bin

Not Applicable

4,280

15-Mar-2011

04:34

Not Applicable

Bench_48.bin

Not Applicable

9,560

15-Mar-2011

04:34

Not Applicable

House_16.bin

Not Applicable

1,112

15-Mar-2011

04:34

Not Applicable

House_24.bin

Not Applicable

2,456

15-Mar-2011

04:34

Not Applicable

House_32.bin

Not Applicable

4,280

15-Mar-2011

04:34

Not Applicable

House_48.bin

Not Applicable

9,560

15-Mar-2011

04:34

Not Applicable

Ncpa.cpl

6.0.6002.22739

165,888

07-Nov-2011

09:16

Not Applicable

Netshell.dll

6.0.6002.22739

3,341,312

07-Nov-2011

09:16

x64

Office_16.bin

Not Applicable

1,112

15-Mar-2011

04:34

Not Applicable

Office_24.bin

Not Applicable

2,456

15-Mar-2011

04:34

Not Applicable

Office_32.bin

Not Applicable

4,280

15-Mar-2011

04:34

Not Applicable

Office_48.bin

Not Applicable

9,560

15-Mar-2011

04:34

Not Applicable

Pnidui.dll

6.0.6002.22739

2,024,448

07-Nov-2011

09:16

x64

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

File name

File version

File size

Date

Time

Platform

Netcfgx.dll

6.0.6002.22739

1,006,080

06-Nov-2011

17:51

IA-64

Bench_16.bin

Not Applicable

1,112

15-Mar-2011

05:10

Not Applicable

Bench_24.bin

Not Applicable

2,456

15-Mar-2011

05:10

Not Applicable

Bench_32.bin

Not Applicable

4,280

15-Mar-2011

05:10

Not Applicable

Bench_48.bin

Not Applicable

9,560

15-Mar-2011

05:10

Not Applicable

House_16.bin

Not Applicable

1,112

15-Mar-2011

05:10

Not Applicable

House_24.bin

Not Applicable

2,456

15-Mar-2011

05:10

Not Applicable

House_32.bin

Not Applicable

4,280

15-Mar-2011

05:10

Not Applicable

House_48.bin

Not Applicable

9,560

15-Mar-2011

05:10

Not Applicable

Ncpa.cpl

6.0.6002.22739

176,128

06-Nov-2011

17:51

Not Applicable

Netshell.dll

6.0.6002.22739

3,950,592

06-Nov-2011

17:51

IA-64

Office_16.bin

Not Applicable

1,112

15-Mar-2011

05:11

Not Applicable

Office_24.bin

Not Applicable

2,456

15-Mar-2011

05:11

Not Applicable

Office_32.bin

Not Applicable

4,280

15-Mar-2011

05:11

Not Applicable

Office_48.bin

Not Applicable

9,560

15-Mar-2011

05:11

Not Applicable

Pnidui.dll

6.0.6002.22739

2,833,408

06-Nov-2011

17:52

IA-64

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_ca1ed38e1eb82e69c86ded376176d6bb_31bf3856ad364e35_6.0.6002.22739_none_c2993885b25584e0.manifest

File version

Not Applicable

File size

696

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

X86_dec2c7d790d78f6a989047bf29d6d251_31bf3856ad364e35_6.0.6002.22739_none_235290ab4c6f6862.manifest

File version

Not Applicable

File size

710

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

X86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest

File version

Not Applicable

File size

21,154

Date (UTC)

06-Nov-2011

Time (UTC)

00:31

File name

X86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest

File version

Not Applicable

File size

149,461

Date (UTC)

06-Nov-2011

Time (UTC)

00:27

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

File name

Amd64_8bab791750ffddbd4a9b1603aa2e9274_31bf3856ad364e35_6.0.6002.22739_none_269ac40a4e5dc861.manifest

File version

Not Applicable

File size

1,040

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

Amd64_d376d1f7fea935a87f257ee6deec272e_31bf3856ad364e35_6.0.6002.22739_none_01239918b8a6b7e8.manifest

File version

Not Applicable

File size

1,068

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

Amd64_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_9c8c3586f4394af3.manifest

File version

Not Applicable

File size

20,863

Date (UTC)

07-Nov-2011

Time (UTC)

09:43

File name

Amd64_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_33fab8f5dcbc4d92.manifest

File version

Not Applicable

File size

149,531

Date (UTC)

07-Nov-2011

Time (UTC)

09:39

File name

X86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest

File version

Not Applicable

File size

21,154

Date (UTC)

06-Nov-2011

Time (UTC)

00:31

File name

X86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest

File version

Not Applicable

File size

149,461

Date (UTC)

06-Nov-2011

Time (UTC)

00:27

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

File name

Ia64_15e2f992e115487d5cc6a51dab5dca78_31bf3856ad364e35_6.0.6002.22739_none_289920faa4055377.manifest

File version

Not Applicable

File size

1,038

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

Ia64_baff2871716ad37007aec70126ce4933_31bf3856ad364e35_6.0.6002.22739_none_818ea22b0d7220bb.manifest

File version

Not Applicable

File size

1,066

Date (UTC)

07-Nov-2011

Time (UTC)

13:36

File name

Ia64_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406f3df93bd9e2b9.manifest

File version

Not Applicable

File size

20,841

Date (UTC)

06-Nov-2011

Time (UTC)

18:05

File name

Ia64_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7ddc168245ce558.manifest

File version

Not Applicable

File size

149,496

Date (UTC)

06-Nov-2011

Time (UTC)

18:03

File name

X86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest

File version

Not Applicable

File size

21,154

Date (UTC)

06-Nov-2011

Time (UTC)

00:31

File name

X86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest

File version

Not Applicable

File size

149,461

Date (UTC)

06-Nov-2011

Time (UTC)

00:27

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