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Client computer uses cached content when a web application that is being initialized receives a request in IIS 8.0

View products that this article applies to.


Consider the following scenario:
  • You install the Application Initialization module on a computer that is running Internet Information Services (IIS) 8.0.
  • A user on a client computer sends a request for a static file, and then the user caches the response.
  • You configure a web application to use the Application Initialization module. Specifically, you specify the remapManagedRequestsTo attribute to use the static file.
  • The user sends a request for a managed page in the web application by using the If-Modified-Since HTTP header.
  • The application receives the request while the application is being initialized.

In this scenario, the user receives an HTTP 304 header response. Therefore, the client computer uses the cached content.

Note If you send more requests for the managed page, the correct content is not returned.

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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 this specific problem.

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, submit a request to 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: 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.


To apply this hotfix, you must have IIS 8.0 installed on a computer that is running Windows 8 or Windows Server 2012.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

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

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 8 and Windows Server 2012 file information note
Important Windows 8 and Windows Server 2012 updates are included in the same packages.
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductSR_LevelService branch
    6.2.920 0.20 xxxWindows 8 and Windows Server 2012RTMLDR
  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows 8 and for Windows Server 2012" section. 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 8
File nameFile versionFile sizeDateTimePlatform

For all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameFile versionFile sizeDateTimePlatform

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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 IIS 8.0 Application Initialization, go to the following Microsoft website:
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 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8
File nameX86_3df6fa78bb035c9ae0ba6ad402b213b7_31bf3856ad364e35_6.2.9200.20551_none_f2cef5254605c0f9.manifest
File versionNot applicable
File size701
Date (UTC)01-Nov-2012
Time (UTC)19:09
File nameX86_microsoft-windows-iis-appwarmup_31bf3856ad364e35_6.2.9200.20551_none_00facde841669c39.manifest
File versionNot applicable
File size2,961
Date (UTC)01-Nov-2012
Time (UTC)05:24

Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012
File nameAmd64_2e149a642ccd3bf1a5c44d11cce07429_31bf3856ad364e35_6.2.9200.20551_none_d392b9b701c15177.manifest
File versionNot applicable
File size1,052
Date (UTC)01-Nov-2012
Time (UTC)19:09
File nameAmd64_microsoft-windows-iis-appwarmup_31bf3856ad364e35_6.2.9200.20551_none_5d19696bf9c40d6f.manifest
File versionNot applicable
File size2,967
Date (UTC)01-Nov-2012
Time (UTC)06:48
File nameWow64_microsoft-windows-iis-appwarmup_31bf3856ad364e35_6.2.9200.20551_none_676e13be2e24cf6a.manifest
File versionNot applicable
File size2,967
Date (UTC)01-Nov-2012
Time (UTC)05:27

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

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Article Info
Article ID : 2771753
Revision : 1
Created on : 1/7/2017
Published on : 12/12/2012
Exists online : False
Views : 168