Update decreases the page load time of web sites that are hosted on Windows 7-based and Windows Server 2008 R2-based web servers

View products that this article applies to.

Introduction

This update lets Internet Information Services (IIS) on Windows 7-based and Windows Server 2008 R2-based web servers use the Application Initialization feature. This feature decreases the page load time of the initial requests to an application on the web server.

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More Information

When an application is not initialized, the page load times are very long for the initial requests. Web applications are recycled periodically, especially on high-traffic sites. Therefore, when a user requests the application during a slow-response time, the page load time can be up to 30 seconds, or possibly longer.

The Application Initialization feature of IIS is used to resolve this issue. However, the feature does not work correctly on Windows 7 and Windows Server 2008 R2 because the pipeline API does not pass the necessary data. This feature can fix most performance issues of the web sites that are hosted on a Windows-based web server.

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 website:

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 one of the following operating systems:

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 7 or 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

Registry information

To apply this hotfix, 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 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 MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separatelyin the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. 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
Hwebcore.dll	7.5.7600.21169	12,800	14-Mar-2012	05:04	x86
Iiscore.dll	7.5.7600.21169	200,192	14-Mar-2012	05:04	x86
Iisstart.htm	Not applicable	689	10-Jun-2009	21:21	Not applicable
W3dt.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Welcome.png	Not applicable	184,946	10-Jun-2009	21:21	Not applicable
Hwebcore.dll	7.5.7601.21943	12,800	14-Mar-2012	04:27	x86
Iiscore.dll	7.5.7601.21943	200,192	14-Mar-2012	04:27	x86
Iisstart.htm	Not applicable	689	10-Jun-2009	21:21	Not applicable
W3dt.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Welcome.png	Not applicable	184,946	10-Jun-2009	21:21	Not applicable
Iisw3adm.dll	7.5.7600.21169	397,312	14-Mar-2012	05:04	x86
W3tp.dll	7.5.7600.21169	15,872	14-Mar-2012	05:06	x86
W3wphost.dll	7.5.7600.21169	55,296	14-Mar-2012	05:06	x86
Wbhstipm.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Wbhst_pm.dll	7.5.7600.21169	23,552	14-Mar-2012	05:06	x86
Iisw3adm.dll	7.5.7601.21943	398,336	14-Mar-2012	04:27	x86
W3tp.dll	7.5.7601.21943	15,872	14-Mar-2012	04:30	x86
W3wphost.dll	7.5.7601.21943	55,296	14-Mar-2012	04:30	x86
Wbhstipm.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Wbhst_pm.dll	7.5.7601.21943	23,552	14-Mar-2012	04:30	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
Hwebcore.dll	7.5.7600.21169	15,360	14-Mar-2012	05:35	x64
Iiscore.dll	7.5.7600.21169	315,392	14-Mar-2012	05:36	x64
Iisstart.htm	Not applicable	689	10-Jun-2009	20:38	Not applicable
W3dt.dll	7.5.7600.21169	31,744	14-Mar-2012	05:41	x64
Welcome.png	Not applicable	184,946	10-Jun-2009	20:38	Not applicable
Hwebcore.dll	7.5.7601.21943	15,360	14-Mar-2012	05:30	x64
Iiscore.dll	7.5.7601.21943	315,904	14-Mar-2012	05:30	x64
Iisstart.htm	Not applicable	689	10-Jun-2009	20:38	Not applicable
W3dt.dll	7.5.7601.21943	32,256	14-Mar-2012	05:35	x64
Welcome.png	Not applicable	184,946	10-Jun-2009	20:38	Not applicable
Iisw3adm.dll	7.5.7600.21169	452,608	14-Mar-2012	05:36	x64
W3tp.dll	7.5.7600.21169	19,968	14-Mar-2012	05:41	x64
W3wphost.dll	7.5.7600.21169	60,928	14-Mar-2012	05:41	x64
Wbhstipm.dll	7.5.7600.21169	28,672	14-Mar-2012	05:41	x64
Wbhst_pm.dll	7.5.7600.21169	25,600	14-Mar-2012	05:41	x64
Iisw3adm.dll	7.5.7601.21943	453,632	14-Mar-2012	05:30	x64
W3tp.dll	7.5.7601.21943	19,968	14-Mar-2012	05:35	x64
W3wphost.dll	7.5.7601.21943	60,928	14-Mar-2012	05:35	x64
Wbhstipm.dll	7.5.7601.21943	28,672	14-Mar-2012	05:35	x64
Wbhst_pm.dll	7.5.7601.21943	25,600	14-Mar-2012	05:35	x64
Hwebcore.dll	7.5.7600.21169	12,800	14-Mar-2012	05:04	x86
Iiscore.dll	7.5.7600.21169	200,192	14-Mar-2012	05:04	x86
W3dt.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Hwebcore.dll	7.5.7601.21943	12,800	14-Mar-2012	04:27	x86
Iiscore.dll	7.5.7601.21943	200,192	14-Mar-2012	04:27	x86
W3dt.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Iisw3adm.dll	7.5.7600.21169	397,312	14-Mar-2012	05:04	x86
W3tp.dll	7.5.7600.21169	15,872	14-Mar-2012	05:06	x86
W3wphost.dll	7.5.7600.21169	55,296	14-Mar-2012	05:06	x86
Wbhstipm.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Wbhst_pm.dll	7.5.7600.21169	23,552	14-Mar-2012	05:06	x86
Iisw3adm.dll	7.5.7601.21943	398,336	14-Mar-2012	04:27	x86
W3tp.dll	7.5.7601.21943	15,872	14-Mar-2012	04:30	x86
W3wphost.dll	7.5.7601.21943	55,296	14-Mar-2012	04:30	x86
Wbhstipm.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Wbhst_pm.dll	7.5.7601.21943	23,552	14-Mar-2012	04:30	x86

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

File name	File version	File size	Date	Time	Platform
Hwebcore.dll	7.5.7600.21169	37,376	14-Mar-2012	04:21	IA-64
Iiscore.dll	7.5.7600.21169	582,144	14-Mar-2012	04:22	IA-64
Iisstart.htm	Not applicable	689	10-Jun-2009	20:42	Not applicable
W3dt.dll	7.5.7600.21169	52,224	14-Mar-2012	04:26	IA-64
Welcome.png	Not applicable	184,946	10-Jun-2009	20:42	Not applicable
Hwebcore.dll	7.5.7601.21943	37,376	14-Mar-2012	04:10	IA-64
Iiscore.dll	7.5.7601.21943	582,144	14-Mar-2012	04:10	IA-64
Iisstart.htm	Not applicable	689	10-Jun-2009	20:42	Not applicable
W3dt.dll	7.5.7601.21943	52,224	14-Mar-2012	04:12	IA-64
Welcome.png	Not applicable	184,946	10-Jun-2009	20:42	Not applicable
Iisw3adm.dll	7.5.7600.21169	943,616	14-Mar-2012	04:22	IA-64
W3tp.dll	7.5.7600.21169	40,960	14-Mar-2012	04:26	IA-64
W3wphost.dll	7.5.7600.21169	144,384	14-Mar-2012	04:26	IA-64
Wbhstipm.dll	7.5.7600.21169	65,536	14-Mar-2012	04:26	IA-64
Wbhst_pm.dll	7.5.7600.21169	67,072	14-Mar-2012	04:26	IA-64
Iisw3adm.dll	7.5.7601.21943	945,152	14-Mar-2012	04:10	IA-64
W3tp.dll	7.5.7601.21943	40,960	14-Mar-2012	04:12	IA-64
W3wphost.dll	7.5.7601.21943	144,384	14-Mar-2012	04:12	IA-64
Wbhstipm.dll	7.5.7601.21943	65,536	14-Mar-2012	04:12	IA-64
Wbhst_pm.dll	7.5.7601.21943	67,072	14-Mar-2012	04:12	IA-64
Hwebcore.dll	7.5.7600.21169	12,800	14-Mar-2012	05:04	x86
Iiscore.dll	7.5.7600.21169	200,192	14-Mar-2012	05:04	x86
W3dt.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Hwebcore.dll	7.5.7601.21943	12,800	14-Mar-2012	04:27	x86
Iiscore.dll	7.5.7601.21943	200,192	14-Mar-2012	04:27	x86
W3dt.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Iisw3adm.dll	7.5.7600.21169	397,312	14-Mar-2012	05:04	x86
W3tp.dll	7.5.7600.21169	15,872	14-Mar-2012	05:06	x86
W3wphost.dll	7.5.7600.21169	55,296	14-Mar-2012	05:06	x86
Wbhstipm.dll	7.5.7600.21169	24,064	14-Mar-2012	05:06	x86
Wbhst_pm.dll	7.5.7600.21169	23,552	14-Mar-2012	05:06	x86
Iisw3adm.dll	7.5.7601.21943	398,336	14-Mar-2012	04:27	x86
W3tp.dll	7.5.7601.21943	15,872	14-Mar-2012	04:30	x86
W3wphost.dll	7.5.7601.21943	55,296	14-Mar-2012	04:30	x86
Wbhstipm.dll	7.5.7601.21943	24,064	14-Mar-2012	04:30	x86
Wbhst_pm.dll	7.5.7601.21943	23,552	14-Mar-2012	04:30	x86

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Additional file information

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

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

File property	Value
File name	X86_04b7fdc714704bab91f1f3224e3304a0_31bf3856ad364e35_6.1.7600.21169_none_45390bca579e388c.manifest
File version	Not applicable
File size	705
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_1c420a6252149cfee9a5d00b7bb3c48e_31bf3856ad364e35_6.1.7601.21943_none_aae46e680291ad8f.manifest
File version	Not applicable
File size	709
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_38c637262eb9d2610de455217f9d81ff_31bf3856ad364e35_6.1.7600.21169_none_055226317b7f06fe.manifest
File version	Not applicable
File size	709
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_d9133d5e52221e6ddadb051065ebb753_31bf3856ad364e35_6.1.7601.21943_none_b2a8d704078fad00.manifest
File version	Not applicable
File size	705
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7600.21169_none_d0237f9ba3a241fe.manifest
File version	Not applicable
File size	10,228
Date (UTC)	14-Mar-2012
Time (UTC)	05:28
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.21943_none_d219a481a0bda7e3.manifest
File version	Not applicable
File size	10,228
Date (UTC)	14-Mar-2012
Time (UTC)	04:59
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7600.21169_none_db15d446253fdfee.manifest
File version	Not applicable
File size	12,568
Date (UTC)	14-Mar-2012
Time (UTC)	05:34
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	X86_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7601.21943_none_dd0bf92c225b45d3.manifest
File version	Not applicable
File size	12,568
Date (UTC)	14-Mar-2012
Time (UTC)	05:01
SHA-1 hash	Not applicable
MD5 hash	Not applicable

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

File property	Value
File name	Amd64_021ab4c45625d55992260d09c6974b51_31bf3856ad364e35_6.1.7601.21943_none_8809b54e6ef81e12.manifest
File version	Not applicable
File size	1,060
Date (UTC)	14-Mar-2012
Time (UTC)	08:20
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_2eb148315be17d18d2acefb34407eb14_31bf3856ad364e35_6.1.7600.21169_none_0c16ed8811fbe270.manifest
File version	Not applicable
File size	1,060
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_c0c0005f3708f5896dda278e6fc32d08_31bf3856ad364e35_6.1.7601.21943_none_be2544ec68a9b92b.manifest
File version	Not applicable
File size	1,068
Date (UTC)	14-Mar-2012
Time (UTC)	08:20
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_d20a292c054fe9b0af3e7efe8849b8db_31bf3856ad364e35_6.1.7600.21169_none_b86c34551323f55b.manifest
File version	Not applicable
File size	1,068
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7600.21169_none_2c421b1f5bffb334.manifest
File version	Not applicable
File size	10,236
Date (UTC)	14-Mar-2012
Time (UTC)	06:27
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.21943_none_2e384005591b1919.manifest
File version	Not applicable
File size	10,236
Date (UTC)	14-Mar-2012
Time (UTC)	06:02
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7600.21169_none_37346fc9dd9d5124.manifest
File version	Not applicable
File size	12,574
Date (UTC)	14-Mar-2012
Time (UTC)	06:29
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Amd64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7601.21943_none_392a94afdab8b709.manifest
File version	Not applicable
File size	12,574
Date (UTC)	14-Mar-2012
Time (UTC)	06:03
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7600.21169_none_3696c5719060752f.manifest
File version	Not applicable
File size	7,906
Date (UTC)	14-Mar-2012
Time (UTC)	05:24
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.21943_none_388cea578d7bdb14.manifest
File version	Not applicable
File size	7,906
Date (UTC)	14-Mar-2012
Time (UTC)	04:48
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7600.21169_none_41891a1c11fe131f.manifest
File version	Not applicable
File size	12,249
Date (UTC)	14-Mar-2012
Time (UTC)	05:24
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7601.21943_none_437f3f020f197904.manifest
File version	Not applicable
File size	12,249
Date (UTC)	14-Mar-2012
Time (UTC)	04:48
SHA-1 hash	Not applicable
MD5 hash	Not applicable

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

File property	Value
File name	Ia64_373cb12f25f3fa1442f506719a86a7c7_31bf3856ad364e35_6.1.7601.21943_none_a35cea0b06a602d9.manifest
File version	Not applicable
File size	1,066
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_5877ad1102e30b212e4ed5246bc92336_31bf3856ad364e35_6.1.7601.21943_none_d266df4fb5c44647.manifest
File version	Not applicable
File size	1,058
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_6fb3e019acbcd01f1e8917896da07d8a_31bf3856ad364e35_6.1.7600.21169_none_8386256b3f2cd593.manifest
File version	Not applicable
File size	1,066
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_e5a67dcf866d19f9f00f6cc25975872b_31bf3856ad364e35_6.1.7600.21169_none_c2064c0a54ae8f3b.manifest
File version	Not applicable
File size	1,058
Date (UTC)	14-Mar-2012
Time (UTC)	08:19
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7600.21169_none_d0252391a3a04afa.manifest
File version	Not applicable
File size	10,232
Date (UTC)	14-Mar-2012
Time (UTC)	06:27
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.21943_none_d21b4877a0bbb0df.manifest
File version	Not applicable
File size	10,232
Date (UTC)	14-Mar-2012
Time (UTC)	05:49
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7600.21169_none_db17783c253de8ea.manifest
File version	Not applicable
File size	12,571
Date (UTC)	14-Mar-2012
Time (UTC)	06:28
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Ia64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7601.21943_none_dd0d9d2222594ecf.manifest
File version	Not applicable
File size	12,571
Date (UTC)	14-Mar-2012
Time (UTC)	05:50
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7600.21169_none_3696c5719060752f.manifest
File version	Not applicable
File size	7,906
Date (UTC)	14-Mar-2012
Time (UTC)	05:24
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.21943_none_388cea578d7bdb14.manifest
File version	Not applicable
File size	7,906
Date (UTC)	14-Mar-2012
Time (UTC)	04:48
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7600.21169_none_41891a1c11fe131f.manifest
File version	Not applicable
File size	12,249
Date (UTC)	14-Mar-2012
Time (UTC)	05:24
SHA-1 hash	Not applicable
MD5 hash	Not applicable
File name	Wow64_microsoft-windows-processmodellibraries_31bf3856ad364e35_6.1.7601.21943_none_437f3f020f197904.manifest
File version	Not applicable
File size	12,249
Date (UTC)	14-Mar-2012
Time (UTC)	04:48
SHA-1 hash	Not applicable
MD5 hash	Not applicable

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References

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

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Applies to:

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Keywords: kbautohotfix, kbsurveynew, kbexpertiseadvanced, kbhotfixserver, kbfix, kbqfe, kb

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Article Info

Article ID	:	2684600
Revision	:	1
Created on	:	1/7/2017
Published on	:	12/20/2013
Exists online	:	False
Views	:	207

Microsoft KB Archive Search

Update decreases the page load time of web sites that are hosted on Windows 7-based and Windows Server 2008 R2-based web servers

Introduction

More Information

Hotfix information

Prerequisites

Registry information

Restart requirement

Hotfix replacement information

Windows 7 and Windows Server 2008 R2 file information notes

For all supported x86-based versions of Windows 7

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

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

Additional file information

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

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

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

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

References

Applies to: