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IIS 7.5 or IIS 8.0 process crashes in Windows

View products that this article applies to.

Symptoms

Consider the following scenario:
  • You install Internet Information Services (IIS) 7.5 on a computer that is running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1. Or, you install IIS 8.0 on a computer that is running Windows 8, Windows Server 2012, Windows 8.1, or Windows Server 2012 R2.
  • The system sends a response that contains more than 2000 entity chunks.
  • When the system calls the SendResponse method to send the response, the initial I/O request is canceled. However, the request connection is still valid.
In this scenario, the IIS process crashes. Therefore, all the web applications that rely on IIS crash.

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Cause

This issue is caused by an access violation. When the SendResponse method tries to resume the I/O request, the list of the chunks is repopulated. However, the chunks are freed.

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Resolution

This hotfix is also available at Microsoft Update Catalog.

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 8
  • Windows Server 2012
  • Windows 7 SP1
  • Windows Server 2008 R2 SP1
  • Windows 8.1
  • Windows Server 2012 R2
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.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important 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.
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.
For all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTime
Hwebcore.dll7.5.7601.2244312,80006-Sep-201301:35
Iiscore.dll7.5.7601.22443200,19206-Sep-201302:04
Iisstart.htmNot applicable68910-Jun-200921:21
W3dt.dll7.5.7601.2244324,06406-Sep-201301:36
Welcome.pngNot applicable184,94610-Jun-200921:21
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTime
Hwebcore.dll7.5.7601.2244315,36006-Sep-201302:25
Iiscore.dll7.5.7601.22443315,90406-Sep-201302:26
Iisstart.htmNot applicable68910-Jun-200920:38
W3dt.dll7.5.7601.2244332,25606-Sep-201302:28
Welcome.pngNot applicable184,94610-Jun-200920:38
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTime
Hwebcore.dll7.5.7601.2244337,37606-Sep-201301:33
Iiscore.dll7.5.7601.22443582,14406-Sep-201301:33
Iisstart.htmNot applicable68910-Jun-200920:42
W3dt.dll7.5.7601.2244352,73606-Sep-201301:36
Welcome.pngNot applicable184,94610-Jun-200920:42
Windows 8 and Windows Server 2012 file information notes
Important Windows 8 hotfixes and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" 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 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
For all supported x86-based versions of Windows 8
File nameFile versionFile sizeDateTime
Hwebcore.dll8.0.9200.2053414,33611-Oct-201205:11
Iiscore.dll8.0.9200.20816206,84806-Sep-201304:22
W3dt.dll8.0.9200.2053425,60011-Oct-201205:12
For all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTime
Hwebcore.dll8.0.9200.2053416,89611-Oct-201205:43
Iiscore.dll8.0.9200.20816318,97606-Sep-201305:36
W3dt.dll8.0.9200.2053439,42411-Oct-201205:44
Windows 8.1 and Windows Server 2012 R2 file information notes
Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" 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 8.1" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Hwebcore.dll8.5.9600.1638415,87222-Aug-201302:53x86
Iiscore.dll8.5.9600.16457211,96808-Nov-201304:25x86
W3dt.dll8.5.9600.16384102,40022-Aug-201302:52x86
For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Hwebcore.dll8.5.9600.1638417,40822-Aug-201310:02x64
Iiscore.dll8.5.9600.16457307,71208-Nov-201304:59x64
W3dt.dll8.5.9600.16384107,52022-Aug-201310:03x64
Hwebcore.dll8.5.9600.1638415,87222-Aug-201302:53x86
Iiscore.dll8.5.9600.16457211,96808-Nov-201304:25x86
W3dt.dll8.5.9600.16384102,40022-Aug-201302:52x86

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Status

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

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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 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTime
X86_02ccf7fb741e3d429deb6b65ae1f87a2_31bf3856ad364e35_6.1.7601.22443_none_3ff9e5e1788e1d6a.manifestNot applicable70506-Sep-201319:31
X86_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.22443_none_d219843ba0bdcfc1.manifestNot applicable10,22806-Sep-201302:32
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTime
Amd64_645ead8318428c9f026db7f6642a093e_31bf3856ad364e35_6.1.7601.22443_none_10139d8f439db773.manifestNot applicable1,06006-Sep-201319:31
Amd64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.22443_none_2e381fbf591b40f7.manifestNot applicable10,23606-Sep-201302:54
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTime
Ia64_d997198a3187137a5cfa07006cfadc2f_31bf3856ad364e35_6.1.7601.22443_none_6222fe9908a1f5b1.manifestNot applicable1,05806-Sep-201319:30
Ia64_microsoft-windows-iis-corewebengine_31bf3856ad364e35_6.1.7601.22443_none_d21b2831a0bbd8bd.manifestNot applicable10,23206-Sep-201302:17

Additional file information for Windows 8 and Windows Server 2012

Additional files for all supported x86-based versions of Windows 8
File nameFile versionFile sizeDateTime
X86_fae5d8b4ee7839998d656a7f07bdefc6_31bf3856ad364e35_6.2.9200.20816_none_2af9bf6d4e9f3f93.manifestNot applicable71306-Sep-201317:36
X86_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.2.9200.20816_none_92868b8410373c90.manifestNot applicable7,01206-Sep-201317:36
Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTime
Amd64_2dd6915a5bd31963c1dccdd44438a9fd_31bf3856ad364e35_6.2.9200.20816_none_8209bbe415fac37d.manifestNot applicable1,07606-Sep-201317:39
Amd64_7d33b566a7cc297fc584e2f68a218b95_31bf3856ad364e35_6.2.9200.20816_none_7838447028e57cc2.manifestNot applicable71706-Sep-201317:39
Amd64_9a5bc6686545156f403fbbe204e9362e_31bf3856ad364e35_6.2.9200.20816_none_36fd842f84aa998f.manifestNot applicable71706-Sep-201317:39
Amd64_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.2.9200.20816_none_eea52707c894adc6.manifestNot applicable7,01806-Sep-201317:39

Additional file information for Windows 8.1 and Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
X86_42db25741a1b5539d83ff081d799d32f_31bf3856ad364e35_6.3.9600.16457_none_c04a3c1eea3d8bbf.manifestNot applicable71308-Nov-201320:15Not applicable
X86_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.3.9600.16457_none_29c76247416bfee9.manifestNot applicable7,01208-Nov-201320:15Not applicable
Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Amd64_70457ef70bd83e6b7b3b8ce8dc0baa15_31bf3856ad364e35_6.3.9600.16457_none_765981ff2ea7263c.manifestNot applicable71708-Nov-201320:16Not applicable
Amd64_a4e8a5ec7b29a120bef2b6cdb306b626_31bf3856ad364e35_6.3.9600.16457_none_3412bef07085718f.manifestNot applicable71708-Nov-201320:16Not applicable
Amd64_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.3.9600.16457_none_85e5fdcaf9c9701f.manifestNot applicable7,01808-Nov-201320:16Not applicable
Wow64_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.3.9600.16457_none_903aa81d2e2a321a.manifestNot applicable6,08908-Nov-201320:16Not applicable

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

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Article Info
Article ID : 2870705
Revision : 1
Created on : 1/7/2017
Published on : 12/6/2013
Exists online : False
Views : 426