Symptoms

Consider the following scenario:

  • You install Internet Information Services (IIS) 7.5 on a computer that is running Windows 7 or Windows Server 2008 R2.¬†Additionally, you install one of the following features when you install IIS 7.5:

    • The IIS 6 Metabase and IIS 6 configuration compatibility feature on a computer that is running Windows 7

    • The IIS 6 Metabase Compatibility role service on a computer that is running Windows Server 2008 R2

  • You run an application that queries some IIS metabase properties by using the IIS Active Directory Service Interfaces (ADSI) provider. The application repeatedly opens and closes all references that are related to the IIS metabase.

In this scenario, a memory leak occurs in the application and in the Inetinfo.exe process. Therefore, performance may decrease.

Cause

This issue occurs because of an error in the IIS ADSI provider.

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 on a computer that is running one of the following operating systems:

  • Windows 7

  • Windows Server 2008 R2

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information


This hotfix does not replace any other hotfix.

File Information

The global 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.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Adsiis.dll

7.5.7600.20879

289,792

13-Jan-2011

05:37

x86

Iisext.dll

7.5.7600.20879

86,016

13-Jan-2011

05:39

x86

Adsiis.dll

7.5.7601.21640

289,792

13-Jan-2011

05:34

x86

Iisext.dll

7.5.7601.21640

86,016

13-Jan-2011

05:35

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

Adsiis.dll

7.5.7600.20879

333,312

13-Jan-2011

06:15

x64

Iisext.dll

7.5.7600.20879

107,008

13-Jan-2011

06:17

x64

Adsiis.dll

7.5.7601.21640

333,312

13-Jan-2011

06:19

x64

Iisext.dll

7.5.7601.21640

107,008

13-Jan-2011

06:21

x64

Adsiis.dll

7.5.7600.20879

289,792

13-Jan-2011

05:37

x86

Iisext.dll

7.5.7600.20879

86,016

13-Jan-2011

05:39

x86

Adsiis.dll

7.5.7601.21640

289,792

13-Jan-2011

05:34

x86

Iisext.dll

7.5.7601.21640

86,016

13-Jan-2011

05:35

x86

For all supported IA-64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Adsiis.dll

7.5.7600.20879

535,040

13-Jan-2011

05:21

IA-64

Iisext.dll

7.5.7600.20879

229,376

13-Jan-2011

05:24

IA-64

Adsiis.dll

7.5.7601.21640

535,040

13-Jan-2011

05:10

IA-64

Iisext.dll

7.5.7601.21640

229,376

13-Jan-2011

05:12

IA-64

Adsiis.dll

7.5.7600.20879

289,792

13-Jan-2011

05:37

x86

Iisext.dll

7.5.7600.20879

86,016

13-Jan-2011

05:39

x86

Adsiis.dll

7.5.7601.21640

289,792

13-Jan-2011

05:34

x86

Iisext.dll

7.5.7601.21640

86,016

13-Jan-2011

05:35

x86

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

File name

Update.mum

File version

Not Applicable

File size

2,684

Date (UTC)

13-Jan-2011

Time (UTC)

17:18

Platform

Not Applicable

File name

X86_16202cc9d577e5eaf96d1851e7e84563_31bf3856ad364e35_6.1.7600.20879_none_bcadf91746662d9f.manifest

File version

Not Applicable

File size

709

Date (UTC)

13-Jan-2011

Time (UTC)

17:17

Platform

Not Applicable

File name

X86_249e01b1b75ed4ad8926eb9ea458d79a_31bf3856ad364e35_6.1.7601.21640_none_31e14281293a56c0.manifest

File version

Not Applicable

File size

709

Date (UTC)

13-Jan-2011

Time (UTC)

17:17

Platform

Not Applicable

File name

X86_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7600.20879_none_e809fca45bc0f101.manifest

File version

Not Applicable

File size

19,620

Date (UTC)

13-Jan-2011

Time (UTC)

06:17

Platform

Not Applicable

File name

X86_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7601.21640_none_ea07c6d458d7250b.manifest

File version

Not Applicable

File size

19,620

Date (UTC)

13-Jan-2011

Time (UTC)

06:10

Platform

Not Applicable

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

File name

Amd64_b488168c3df26cd33b34b6b0ccb7062a_31bf3856ad364e35_6.1.7601.21640_none_c12d8eae843a5f14.manifest

File version

Not Applicable

File size

1,068

Date (UTC)

13-Jan-2011

Time (UTC)

17:18

Platform

Not Applicable

File name

Amd64_c76b66a08defadb3d299de6bbc536973_31bf3856ad364e35_6.1.7600.20879_none_b2137c8f08123cf0.manifest

File version

Not Applicable

File size

1,068

Date (UTC)

13-Jan-2011

Time (UTC)

17:18

Platform

Not Applicable

File name

Amd64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7600.20879_none_44289828141e6237.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

07:03

Platform

Not Applicable

File name

Amd64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7601.21640_none_4626625811349641.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

07:03

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

3,120

Date (UTC)

13-Jan-2011

Time (UTC)

17:18

Platform

Not Applicable

File name

Wow64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7600.20879_none_4e7d427a487f2432.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

06:09

Platform

Not Applicable

File name

Wow64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7601.21640_none_507b0caa4595583c.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

06:02

Platform

Not Applicable

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


File name

Ia64_335c28dfe1ba8ef3a4876d09468d5216_31bf3856ad364e35_6.1.7600.20879_none_057f4a57da8a8e6b.manifest

File version

Not Applicable

File size

1,066

Date (UTC)

13-Jan-2011

Time (UTC)

17:17

Platform

Not Applicable

File name

Ia64_734cb2d12d60b3536b03417e4256437d_31bf3856ad364e35_6.1.7601.21640_none_a6dc520a0d41ef49.manifest

File version

Not Applicable

File size

1,066

Date (UTC)

13-Jan-2011

Time (UTC)

17:17

Platform

Not Applicable

File name

Ia64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7600.20879_none_e80ba09a5bbef9fd.manifest

File version

Not Applicable

File size

19,623

Date (UTC)

13-Jan-2011

Time (UTC)

06:58

Platform

Not Applicable

File name

Ia64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7601.21640_none_ea096aca58d52e07.manifest

File version

Not Applicable

File size

19,623

Date (UTC)

13-Jan-2011

Time (UTC)

07:00

Platform

Not Applicable

File name

Update.mum

File version

Not Applicable

File size

2,347

Date (UTC)

13-Jan-2011

Time (UTC)

17:17

Platform

Not Applicable

File name

Wow64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7600.20879_none_4e7d427a487f2432.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

06:09

Platform

Not Applicable

File name

Wow64_microsoft-windows-iis-adsicompatibility_31bf3856ad364e35_6.1.7601.21640_none_507b0caa4595583c.manifest

File version

Not Applicable

File size

19,626

Date (UTC)

13-Jan-2011

Time (UTC)

06:02

Platform

Not Applicable



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, create and maintain one instance of the IIS://Localhost/W3SVC object while the application runs.

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