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Symptoms

Consider the following scenario:

  • You install Internet Information Services (IIS) 7.5 on a computer that is running one of the following operating systems:

    • Windows Vista

    • Windows Server 2008

    • Windows 7

    • Windows Server 2008 R2

  • You run a Windows script to connect to the Windows Management Instrumentation (WMI) WebAdministration namespace.
    For example, you run the following VBScript script:

    Set oIIS = GetObject("winmgmts:root\WebAdministration")
    Set oSite = oIIS.Get("Site.Name='Default Web Site'")
    WScript.Echo "Retrieved an instance of Site "
    WScript.Echo " Name: " & oSite.Name
    WScript.Echo " ID: " & oSite.ID
    Set objInParam = oSite.Methods_("GetState"). _
    inParameters.SpawnInstance_()
    For i = 0 to 10000
    Set objOutParams = oIIS.ExecMethod("Site.Name='Default Web Site'", "GetState", objInParam)
    Wscript.Echo "Out Parameters: "
    Wscript.Echo "ReturnValue: " & objOutParams.ReturnValue
    WScript.Echo "LoopCount : " & i
    objOutParams = NIL
    Wscript.Echo "NIL is " & objOutParams

    Next
    oSite.Stop

In this scenario, a memory leak may occur in the WmiPrvSe.exe process.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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 website:

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 have IIS 7.5 installed, with the IIS Management Scripts and Tools module installed, on a computer that is running one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008 Service Pack 2 (SP2)

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

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

For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information


This hotfix does not replace a previously released hotfix.

File Information

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

    7.0.600
    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

Webadministration.mof

Not Applicable

365,274

01-Feb-2012

11:33

Not Applicable

Wmi-appserver.dll

7.0.6002.22789

244,736

01-Feb-2012

14:49

x86

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

File name

File version

File size

Date

Time

Platform

Webadministration.mof

Not Applicable

365,274

01-Feb-2012

11:35

Not Applicable

Wmi-appserver.dll

7.0.6002.22789

382,976

01-Feb-2012

15:29

x64

Webadministration.mof

Not Applicable

365,274

01-Feb-2012

11:33

Not Applicable

Wmi-appserver.dll

7.0.6002.22789

244,736

01-Feb-2012

14:49

x86

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

File name

File version

File size

Date

Time

Platform

Webadministration.mof

Not Applicable

365,274

01-Feb-2012

11:51

Not Applicable

Wmi-appserver.dll

7.0.6002.22789

768,512

01-Feb-2012

14:47

IA-64

Webadministration.mof

Not Applicable

365,274

01-Feb-2012

11:33

Not Applicable

Wmi-appserver.dll

7.0.6002.22789

244,736

01-Feb-2012

14:49

x86

Windows 7 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" 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

    7.5.760
    0.
    20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    7.5.760
    1.
    21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    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 R2 and for Windows 7" section. MUM 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 7

File name

File version

File size

Date

Time

Platform

Wmi-appserver.dll

7.5.7600.20916

247,296

05-Mar-2011

05:54

x86

Wmi-appserver.dll

7.5.7601.21675

247,296

05-Mar-2011

05:27

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Wmi-appserver.dll

7.5.7600.20916

387,072

05-Mar-2011

06:28

x64

Wmi-appserver.dll

7.5.7601.21675

387,072

05-Mar-2011

06:17

x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Wmi-appserver.dll

7.5.7600.20916

779,264

05-Mar-2011

05:22

IA-64

Wmi-appserver.dll

7.5.7601.21675

779,264

05-Mar-2011

05:16

IA-64


Status

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

Workaround

To work around this issue, terminate the WmiPrvSe.exe process, and then restart it.

More Information

For more information about how to access WMI namespaces, visit the following MSDN website:

How to access WMI namespaces

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

Update.mum

File version

Not Applicable

File size

3,026

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

X86_892952c282c1d53a86a921117229874b_31bf3856ad364e35_6.0.6002.22789_none_131156bb8e33d316.manifest

File version

Not Applicable

File size

716

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

X86_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.0.6002.22789_none_04904f1b845a457f.manifest

File version

Not Applicable

File size

55,892

Date (UTC)

01-Feb-2012

Time (UTC)

15:30

Platform

Not Applicable

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

File name

Amd64_7d7891c73028fc6622d8117e5e81e912_31bf3856ad364e35_6.0.6002.22789_none_db48f5651353b1e3.manifest

File version

Not Applicable

File size

1,082

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

Amd64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.0.6002.22789_none_60aeea9f3cb7b6b5.manifest

File version

Not Applicable

File size

55,918

Date (UTC)

01-Feb-2012

Time (UTC)

15:47

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

3,050

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.0.6002.22789_none_6b0394f1711878b0.manifest

File version

Not Applicable

File size

52,519

Date (UTC)

01-Feb-2012

Time (UTC)

15:14

Platform

Not Applicable

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

File name

Ia64_d8bf2f748ecdfbfda2d5e5b51aa3bea3_31bf3856ad364e35_6.0.6002.22789_none_07de1ccb7da6d7cc.manifest

File version

Not Applicable

File size

1,080

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

Ia64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.0.6002.22789_none_0491f31184584e7b.manifest

File version

Not Applicable

File size

55,905

Date (UTC)

01-Feb-2012

Time (UTC)

15:17

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,575

Date (UTC)

01-Feb-2012

Time (UTC)

16:53

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.0.6002.22789_none_6b0394f1711878b0.manifest

File version

Not Applicable

File size

52,519

Date (UTC)

01-Feb-2012

Time (UTC)

15:14

Platform

Not Applicable

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

Update.mum

File version

Not Applicable

File size

2,270

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

X86_06facec1a51198b0a789f2ede983b804_31bf3856ad364e35_6.1.7600.20916_none_16f49d4302392790.manifest

File version

Not Applicable

File size

716

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

X86_1284bd7c5c796593f91c58dddd47e251_31bf3856ad364e35_6.1.7601.21675_none_4997a96df3797143.manifest

File version

Not Applicable

File size

716

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

X86_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7600.20916_none_031a5842e8152359.manifest

File version

Not Applicable

File size

27,757

Date (UTC)

05-Mar-2011

Time (UTC)

06:16

Platform

Not Applicable

File name

X86_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7601.21675_none_04bed390e56d206d.manifest

File version

Not Applicable

File size

27,757

Date (UTC)

05-Mar-2011

Time (UTC)

05:55

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_9c04c72d46bf037685c2aa3cdae1b829_31bf3856ad364e35_6.1.7600.20916_none_2de686ffa61e8ee3.manifest

File version

Not Applicable

File size

1,082

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Amd64_c1dde39cbe56b45db44bf0081bb63ae2_31bf3856ad364e35_6.1.7601.21675_none_3021c071024f36b2.manifest

File version

Not Applicable

File size

1,082

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Amd64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7600.20916_none_5f38f3c6a072948f.manifest

File version

Not Applicable

File size

27,763

Date (UTC)

05-Mar-2011

Time (UTC)

07:21

Platform

Not Applicable

File name

Amd64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7601.21675_none_60dd6f149dca91a3.manifest

File version

Not Applicable

File size

27,763

Date (UTC)

05-Mar-2011

Time (UTC)

06:48

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,702

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7600.20916_none_698d9e18d4d3568a.manifest

File version

Not Applicable

File size

27,323

Date (UTC)

05-Mar-2011

Time (UTC)

06:09

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7601.21675_none_6b321966d22b539e.manifest

File version

Not Applicable

File size

27,323

Date (UTC)

05-Mar-2011

Time (UTC)

05:42

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_86e3a8c28b8f18a48c352636a9b7539b_31bf3856ad364e35_6.1.7600.20916_none_a204a0b4d96a5e45.manifest

File version

Not Applicable

File size

1,080

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Ia64_ccc411aef1bff42674863ac2893a8cc8_31bf3856ad364e35_6.1.7601.21675_none_084fcf777510377a.manifest

File version

Not Applicable

File size

1,080

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Ia64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7600.20916_none_031bfc38e8132c55.manifest

File version

Not Applicable

File size

27,760

Date (UTC)

05-Mar-2011

Time (UTC)

07:15

Platform

Not Applicable

File name

Ia64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7601.21675_none_04c07786e56b2969.manifest

File version

Not Applicable

File size

27,760

Date (UTC)

05-Mar-2011

Time (UTC)

06:43

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

1,931

Date (UTC)

05-Mar-2011

Time (UTC)

14:59

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7600.20916_none_698d9e18d4d3568a.manifest

File version

Not Applicable

File size

27,323

Date (UTC)

05-Mar-2011

Time (UTC)

06:09

Platform

Not Applicable

File name

Wow64_microsoft-windows-i..ementscriptingtools_31bf3856ad364e35_6.1.7601.21675_none_6b321966d22b539e.manifest

File version

Not Applicable

File size

27,323

Date (UTC)

05-Mar-2011

Time (UTC)

05:42

Platform

Not Applicable

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