The memory usage of an application or a service keeps increasing when it loads and unloads the Netshell.dll module frequently in Windows Vista or in Windows Server 2008

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Article ID: 2639845 - View products that this article applies to.
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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=support
Note 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.
    Collapse this tableExpand this table
    VersionProductSR_LevelService branch
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netcfgx.dll6.0.6002.22739387,07206-Nov-201100:06x86
Bench_16.binNot Applicable1,11209-Sep-201111:25Not Applicable
Bench_24.binNot Applicable2,45609-Sep-201111:25Not Applicable
Bench_32.binNot Applicable4,28009-Sep-201111:25Not Applicable
Bench_48.binNot Applicable9,56009-Sep-201111:25Not Applicable
House_16.binNot Applicable1,11209-Sep-201111:25Not Applicable
House_24.binNot Applicable2,45609-Sep-201111:25Not Applicable
House_32.binNot Applicable4,28009-Sep-201111:25Not Applicable
House_48.binNot Applicable9,56009-Sep-201111:25Not Applicable
Ncpa.cpl6.0.6002.22739164,86406-Nov-201100:06Not Applicable
Netshell.dll6.0.6002.227393,174,40006-Nov-201100:06x86
Office_16.binNot Applicable1,11209-Sep-201111:25Not Applicable
Office_24.binNot Applicable2,45609-Sep-201111:25Not Applicable
Office_32.binNot Applicable4,28009-Sep-201111:25Not Applicable
Office_48.binNot Applicable9,56009-Sep-201111:25Not Applicable
Pnidui.dll6.0.6002.227391,823,74406-Nov-201100:07x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netcfgx.dll6.0.6002.22739504,83207-Nov-201109:16x64
Bench_16.binNot Applicable1,11215-Mar-201104:34Not Applicable
Bench_24.binNot Applicable2,45615-Mar-201104:34Not Applicable
Bench_32.binNot Applicable4,28015-Mar-201104:34Not Applicable
Bench_48.binNot Applicable9,56015-Mar-201104:34Not Applicable
House_16.binNot Applicable1,11215-Mar-201104:34Not Applicable
House_24.binNot Applicable2,45615-Mar-201104:34Not Applicable
House_32.binNot Applicable4,28015-Mar-201104:34Not Applicable
House_48.binNot Applicable9,56015-Mar-201104:34Not Applicable
Ncpa.cpl6.0.6002.22739165,88807-Nov-201109:16Not Applicable
Netshell.dll6.0.6002.227393,341,31207-Nov-201109:16x64
Office_16.binNot Applicable1,11215-Mar-201104:34Not Applicable
Office_24.binNot Applicable2,45615-Mar-201104:34Not Applicable
Office_32.binNot Applicable4,28015-Mar-201104:34Not Applicable
Office_48.binNot Applicable9,56015-Mar-201104:34Not Applicable
Pnidui.dll6.0.6002.227392,024,44807-Nov-201109:16x64
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netcfgx.dll6.0.6002.227391,006,08006-Nov-201117:51IA-64
Bench_16.binNot Applicable1,11215-Mar-201105:10Not Applicable
Bench_24.binNot Applicable2,45615-Mar-201105:10Not Applicable
Bench_32.binNot Applicable4,28015-Mar-201105:10Not Applicable
Bench_48.binNot Applicable9,56015-Mar-201105:10Not Applicable
House_16.binNot Applicable1,11215-Mar-201105:10Not Applicable
House_24.binNot Applicable2,45615-Mar-201105:10Not Applicable
House_32.binNot Applicable4,28015-Mar-201105:10Not Applicable
House_48.binNot Applicable9,56015-Mar-201105:10Not Applicable
Ncpa.cpl6.0.6002.22739176,12806-Nov-201117:51Not Applicable
Netshell.dll6.0.6002.227393,950,59206-Nov-201117:51IA-64
Office_16.binNot Applicable1,11215-Mar-201105:11Not Applicable
Office_24.binNot Applicable2,45615-Mar-201105:11Not Applicable
Office_32.binNot Applicable4,28015-Mar-201105:11Not Applicable
Office_48.binNot Applicable9,56015-Mar-201105:11Not Applicable
Pnidui.dll6.0.6002.227392,833,40806-Nov-201117:52IA-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
Collapse this tableExpand this table
File nameX86_ca1ed38e1eb82e69c86ded376176d6bb_31bf3856ad364e35_6.0.6002.22739_none_c2993885b25584e0.manifest
File versionNot Applicable
File size696
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameX86_dec2c7d790d78f6a989047bf29d6d251_31bf3856ad364e35_6.0.6002.22739_none_235290ab4c6f6862.manifest
File versionNot Applicable
File size710
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameX86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest
File versionNot Applicable
File size21,154
Date (UTC)06-Nov-2011
Time (UTC)00:31
File nameX86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest
File versionNot Applicable
File size149,461
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
Collapse this tableExpand this table
File nameAmd64_8bab791750ffddbd4a9b1603aa2e9274_31bf3856ad364e35_6.0.6002.22739_none_269ac40a4e5dc861.manifest
File versionNot Applicable
File size1,040
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameAmd64_d376d1f7fea935a87f257ee6deec272e_31bf3856ad364e35_6.0.6002.22739_none_01239918b8a6b7e8.manifest
File versionNot Applicable
File size1,068
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameAmd64_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_9c8c3586f4394af3.manifest
File versionNot Applicable
File size20,863
Date (UTC)07-Nov-2011
Time (UTC)09:43
File nameAmd64_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_33fab8f5dcbc4d92.manifest
File versionNot Applicable
File size149,531
Date (UTC)07-Nov-2011
Time (UTC)09:39
File nameX86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest
File versionNot Applicable
File size21,154
Date (UTC)06-Nov-2011
Time (UTC)00:31
File nameX86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest
File versionNot Applicable
File size149,461
Date (UTC)06-Nov-2011
Time (UTC)00:27
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_15e2f992e115487d5cc6a51dab5dca78_31bf3856ad364e35_6.0.6002.22739_none_289920faa4055377.manifest
File versionNot Applicable
File size1,038
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameIa64_baff2871716ad37007aec70126ce4933_31bf3856ad364e35_6.0.6002.22739_none_818ea22b0d7220bb.manifest
File versionNot Applicable
File size1,066
Date (UTC)07-Nov-2011
Time (UTC)13:36
File nameIa64_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406f3df93bd9e2b9.manifest
File versionNot Applicable
File size20,841
Date (UTC)06-Nov-2011
Time (UTC)18:05
File nameIa64_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7ddc168245ce558.manifest
File versionNot Applicable
File size149,496
Date (UTC)06-Nov-2011
Time (UTC)18:03
File nameX86_microsoft-windows-ndis-tdi-bindingengine_31bf3856ad364e35_6.0.6002.22739_none_406d9a033bdbd9bd.manifest
File versionNot Applicable
File size21,154
Date (UTC)06-Nov-2011
Time (UTC)00:31
File nameX86_microsoft-windows-netshell_31bf3856ad364e35_6.0.6002.22739_none_d7dc1d72245edc5c.manifest
File versionNot Applicable
File size149,461
Date (UTC)06-Nov-2011
Time (UTC)00:27

Properties

Article ID: 2639845 - Last Review: December 14, 2011 - Revision: 1.0
APPLIES TO
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Ultimate 64-bit Edition
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2639845

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