Reassociated WFP context in same flow doesn't work in Windows

This article describes an issue that occurs when a context is associated with a data flow in Windows Server 2012 R2, Windows 8.1, Windows RT 8.1, Windows Server 2012, or Windows Embedded 8. You can fix this issue by using the update in this article. Before you install this update, see the Prerequisites section.
Symptoms
For Windows Filtering Platform (WFP) callouts that process data at a filtering layer that supports data flows, the callout driver can associate a context with each data flow. WFP callouts that associate context with data flows may not be able to correctly inspect traffic because of a problem in how WFP handles the callout driver allocated context.
How to get this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8.1DownloadDownload the package now.
All supported x64-based versions of Windows 8.1 DownloadDownload the package now.
All supported x64-based versions of Windows Server 2012 R2DownloadDownload the package now.
All supported x64-based versions of Windows Server 2012DownloadDownload the package now.
Note The update for Windows RT 8.1 can be downloaded only from Windows Update.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Update detail information

Prerequisites

To apply this update in Windows 8.1 or Windows Server 2012 R2, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update doesn't replace a previously released update.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2

Notes
  • 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:
    VersionProductMilestoneService branch
    6.3.960 0.18 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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.
x86 Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.18183332,63230-Dec-201520:54x86
x64 Windows 8.1 and Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.18183470,36030-Dec-201520:49x64
Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.3.9600.18183301,92030-Dec-201521:00Not applicable

Windows Embedded 8 and Windows Server 2012

Notes
  • 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:
    Version Product Milestone Service branch
    6.2.920 0.17xxxWindows Embedded 8 or Windows Server 2012RTMGDR
    6.2.920 0.21xxxWindows Embedded 8 or Windows Server 2012RTMLDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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.
x86 Windows Embedded 8
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.2.9200.17626342,36013-Jan-201621:50x86
Netio.sys6.2.9200.21745341,33613-Jan-201622:06x86
x64 Windows Embedded 8 and Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.2.9200.17626447,83214-Jan-201601:10x64
Netio.sys6.2.9200.21745442,71213-Jan-201621:59x64

Additional file information

x86 Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,600
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameX86_1c1a8a87509f62da063df035f4e8aa85_31bf3856ad364e35_6.3.9600.18185_none_af15f292f608323c.manifest
File versionNot applicable
File size708
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.18185_none_eb3c004ad0e66ee8.manifest
File versionNot applicable
File size2,582
Date (UTC)30-Dec-2015
Time (UTC)21:06
PlatformNot applicable
x64 Windows 8.1 and Windows Server 2012 R2
File propertyValue
File nameAmd64_4346ef77b839fcb61cc7baf5cb493685_31bf3856ad364e35_6.3.9600.18185_none_2b429a83ea63ccbb.manifest
File versionNot applicable
File size712
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameAmd64_7dbeb107dd2c314c95a7d4d2b3c1bc66_31bf3856ad364e35_6.3.9600.18185_none_167fbb641b2647b2.manifest
File versionNot applicable
File size712
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.18185_none_475a9bce8943e01e.manifest
File versionNot applicable
File size2,584
Date (UTC)30-Dec-2015
Time (UTC)21:09
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,609
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.18185_none_51af4620bda4a219.manifest
File versionNot applicable
File size1,183
Date (UTC)30-Dec-2015
Time (UTC)15:24
PlatformNot applicable
Windows RT 8.1
File propertyValue
File nameArm_0fe693a461853f9fe952130462d9f96e_31bf3856ad364e35_6.3.9600.18185_none_68cbdb2a3167f74e.manifest
File versionNot applicable
File size708
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameArm_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.3.9600.18185_none_eb3e72a2d0e38dae.manifest
File versionNot applicable
File size2,582
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,600
Date (UTC)30-Dec-2015
Time (UTC)21:01
PlatformNot applicable
x86 Windows Embedded 8
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,601
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameX86_075cdadf9198803252750e6a659c4029_31bf3856ad364e35_6.2.9200.21745_none_c8eae3f5c101f8a0.manifest
File versionNot applicable
File size708
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameX86_e28cd77ecc88fecd3f8cec12c44359ed_31bf3856ad364e35_6.2.9200.17626_none_2b9e4a6d4a9364b7.manifest
File versionNot applicable
File size708
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.17626_none_538947bc8681e83e.manifest
File versionNot applicable
File size2,579
Date (UTC)13-Jan-2016
Time (UTC)21:54
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21745_none_53fc44659fb0a693.manifest
File versionNot applicable
File size2,579
Date (UTC)13-Jan-2016
Time (UTC)22:30
PlatformNot applicable
x64 Windows Embedded 8 and Windows Server 2012
File propertyValue
File nameAmd64_16fb62285c66bc8832c81cc634c2b00e_31bf3856ad364e35_6.2.9200.17626_none_6b7e4ed073afe718.manifest
File versionNot applicable
File size712
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameAmd64_56087151ad858afea0aec6e83febe776_31bf3856ad364e35_6.2.9200.21745_none_d4b409a77b2a943e.manifest
File versionNot applicable
File size712
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameAmd64_c8fa660887824f3cdbd51966aed3ac60_31bf3856ad364e35_6.2.9200.21745_none_be958e4f22535280.manifest
File versionNot applicable
File size712
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameAmd64_e80d861d5f390670d04e1c0d34a84ce8_31bf3856ad364e35_6.2.9200.17626_none_c002146042a2ca6d.manifest
File versionNot applicable
File size712
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.17626_none_afa7e3403edf5974.manifest
File versionNot applicable
File size2,581
Date (UTC)14-Jan-2016
Time (UTC)01:26
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21745_none_b01adfe9580e17c9.manifest
File versionNot applicable
File size2,581
Date (UTC)13-Jan-2016
Time (UTC)23:27
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,483
Date (UTC)15-Jan-2016
Time (UTC)02:24
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.17626_none_b9fc8d9273401b6f.manifest
File versionNot applicable
File size1,183
Date (UTC)13-Jan-2016
Time (UTC)21:53
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.2.9200.21745_none_ba6f8a3b8c6ed9c4.manifest
File versionNot applicable
File size1,183
Date (UTC)13-Jan-2016
Time (UTC)22:29
PlatformNot applicable
Properties

Article ID: 3123242 - Last Review: 03/08/2016 18:38:00 - Revision: 3.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Embedded 8 Standard

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