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Compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: May 2014

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This compatibility update is a software update that improves the compatibility experience in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. Microsoft regularly releases Windows compatibility updates to improve the overall user experience.

This compatibility update is dated May 2014.

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More Information

Update information

How to obtain this update

Windows Update

This update is available from Windows Update.
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8.1Download Download the update package now.
All supported x64-based versions of Windows 8.1Download Download the update package now.
All supported x64-based versions of Windows Server 2012 R2Download Download the update package now.
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.

The kinds of problems that are resolved by application compatibility updates

When you try to install and run certain games or applications in Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2, you may experience one or more of the following symptoms:
  • The game, the application, or the driver is installed incorrectly.
  • The game, the application, or the driver causes system instability.
  • The primary functions of the game, the application, or the firmware works incorrectly.

Improvements in the compatibility experience

Applications or devices that experience a change in behavior after you install this update

The following table lists the applications and devices that were included in this cumulative update package. This table also describes the behavior of these applications and devices after you install the update.

Compatibility updates trigger several changes in Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2. The following are the most common.
Hard block
This prevents an application that is incompatible with Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2 from running on the system.

Note Microsoft enables Windows to put a hard block on a non-Microsoft application only if the manufacturer is notified.
Soft block
This notifies you when a primary function of the application may not work or may cause application instability.
Driver block
This may block an existing driver on your computer. When the driver is migrated during the upgrade, an Inbox driver will be installed.

Applications and devices that are included in this update

Applications or DevicesVersionBehavior after you install the update
Marcrium ReflectUp to 5.0.*Blocks application installation.
MG25-Terran2+G USB 3.0 HDDnot availableImproves user experience.
File information
The global version of this update 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 for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2" 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.

For Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Acspecfc.dll6.3.9600.164279,72812-Oct-201321:13Not applicable
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Acres.dll6.3.9600.16384310,78422-Aug-201304:16x86
Sysmain.sdbNot applicable3,835,13618-Apr-201402:47Not applicable
Msimain.sdbNot applicable2,727,02218-Apr-201402:47Not applicable
Acgenral.dll6.3.9600.170982,441,21618-Apr-201409:14x86
Drvmain.sdbNot applicable118,47218-Apr-201402:47Not applicable
For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Sysmain.sdbNot applicable433,63818-Apr-201402:43Not applicable
Msimain.sdbNot applicable2,757,39818-Apr-201402:43Not applicable
Drvmain.sdbNot applicable119,76218-Apr-201402:43Not applicable
Acres.dll6.3.9600.16384310,78422-Aug-201304:16x86
Sysmain.sdbNot applicable3,835,13618-Apr-201402:47Not applicable
Acgenral.dll6.3.9600.170982,441,21618-Apr-201409:14x86


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 RT 8.1, Windows 8.1, and Windows Server 2012 R2

Additional file information for Windows RT 8.1
File propertyValue
File nameArm_29b00ee4e33e29a25d39f5a9e727819c_31bf3856ad364e35_6.3.9600.17098_none_f0e0011a2d907695.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_638645c5e1a665aa424393fc5b79a50e_31bf3856ad364e35_6.3.9600.17098_none_5881540805724c72.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_a83e663a7faa366824d117d68a95679b_31bf3856ad364e35_6.3.9600.17098_none_b94489f4625b2619.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_a9a28e609a28f3e1fdf993803b029837_31bf3856ad364e35_6.3.9600.17098_none_75ea3a22f4ed3664.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_fd3253a4695d110e26829a4e5f430eca_31bf3856ad364e35_6.3.9600.17098_none_605d43404195795d.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17098_none_a0bd83cb0de7c34a.manifest
File versionNot applicable
File size3,312
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17098_none_a0be84150de6dca1.manifest
File versionNot applicable
File size2,558
Date (UTC)18-Apr-2014
Time (UTC)14:24
PlatformNot applicable
File nameArm_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17098_none_a0bf845f0de5f5f8.manifest
File versionNot applicable
File size3,310
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17098_none_a0c084a90de50f4f.manifest
File versionNot applicable
File size2,555
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameArm_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17098_none_a0c385870de25b54.manifest
File versionNot applicable
File size1,867
Date (UTC)18-Apr-2014
Time (UTC)14:24
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,804
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameUpdate.mum
File versionNot applicable
File size1,805
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_a3dacb867150f915b4ded9815dedd694_31bf3856ad364e35_6.3.9600.17098_none_4f00920ac7f5dd8c.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_b81de2c77b4bb96b1984544b509f1df7_31bf3856ad364e35_6.3.9600.17098_none_04f385aa443bb7e1.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_c911708c0f88e5bba2a3ad3f8ec4c32b_31bf3856ad364e35_6.3.9600.17098_none_2b65f393e03564bf.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_f57124a684a5d9c8c8724117cefcb817_31bf3856ad364e35_6.3.9600.17098_none_58201a6f304ab522.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_f943f81626ff40e908639ff8c042f5c6_31bf3856ad364e35_6.3.9600.17098_none_9d15e3fa8a7606ec.manifest
File versionNot applicable
File size725
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17098_none_a0bb11730deaa484.manifest
File versionNot applicable
File size3,312
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17098_none_a0bc11bd0de9bddb.manifest
File versionNot applicable
File size2,558
Date (UTC)18-Apr-2014
Time (UTC)13:47
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17098_none_a0bd12070de8d732.manifest
File versionNot applicable
File size3,310
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17098_none_a0be12510de7f089.manifest
File versionNot applicable
File size2,555
Date (UTC)18-Apr-2014
Time (UTC)21:55
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17098_none_a0c1132f0de53c8e.manifest
File versionNot applicable
File size1,867
Date (UTC)18-Apr-2014
Time (UTC)13:47
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File propertyValue
File nameAmd64_28d5b66b2249046e30a6adba151ac6c7_31bf3856ad364e35_6.3.9600.17098_none_a891a7b24cc744ea.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_322220997def4621dac7ce63ceb3cdde_31bf3856ad364e35_6.3.9600.17098_none_184c92629f0a9d57.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_51232574a1da9bbe8c3c85836f215f51_31bf3856ad364e35_6.3.9600.17098_none_8f5729c9ed012e3d.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_58e267016bd88d24f107d7087c07bd38_31bf3856ad364e35_6.3.9600.17098_none_cdceb4daed8325c5.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_660dedf34b1754e078e468d215b87457_31bf3856ad364e35_6.3.9600.17098_none_2979b4effb5bbef3.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_8767f4b895aaa2319de368e99da63beb_31bf3856ad364e35_6.3.9600.17098_none_b6580951fc67c120.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_a3dacb867150f915b4ded9815dedd694_31bf3856ad364e35_6.3.9600.17098_none_ab1f2d8e80534ec2.manifest
File versionNot applicable
File size727
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_a5737791ba81b421a27a386665a23460_31bf3856ad364e35_6.3.9600.17098_none_73d6bef9ee0a8e46.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_c911708c0f88e5bba2a3ad3f8ec4c32b_31bf3856ad364e35_6.3.9600.17098_none_87848f179892d5f5.manifest
File versionNot applicable
File size727
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_f744e8952ee20f145de5f5a18cf4008a_31bf3856ad364e35_6.3.9600.17098_none_db286b083552f1c7.manifest
File versionNot applicable
File size729
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17098_none_fcd9acf6c64815ba.manifest
File versionNot applicable
File size2,573
Date (UTC)18-Apr-2014
Time (UTC)16:09
PlatformNot applicable
File nameAmd64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17098_none_fcdaad40c6472f11.manifest
File versionNot applicable
File size2,562
Date (UTC)18-Apr-2014
Time (UTC)16:09
PlatformNot applicable
File nameAmd64_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17098_none_fcdbad8ac6464868.manifest
File versionNot applicable
File size3,336
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17098_none_fcdcadd4c64561bf.manifest
File versionNot applicable
File size2,570
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameAmd64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17098_none_fcdfaeb2c642adc4.manifest
File versionNot applicable
File size1,869
Date (UTC)18-Apr-2014
Time (UTC)16:08
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,939
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameWow64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17098_none_072e5748faa8d7b5.manifest
File versionNot applicable
File size3,314
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameWow64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17098_none_072f5792faa7f10c.manifest
File versionNot applicable
File size1,141
Date (UTC)18-Apr-2014
Time (UTC)13:40
PlatformNot applicable
File nameWow64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17098_none_07345904faa36fbf.manifest
File versionNot applicable
File size450
Date (UTC)18-Apr-2014
Time (UTC)13:40
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17098_none_a0bd12070de8d732.manifest
File versionNot applicable
File size3,310
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable
File nameX86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17098_none_a0be12510de7f089.manifest
File versionNot applicable
File size2,555
Date (UTC)18-Apr-2014
Time (UTC)22:01
PlatformNot applicable


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References

For more information about previously released compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 in 2014, click the following article numbers to view the articles in the Microsoft Knowledge Base:
  • 2917929 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: February 2014
  • 2930157 Compatibility update is available for Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2: March 2014
  • 2933809 Compatibility update is available for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: April 2014

Third-party information disclaimer

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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Keywords: atdownload, kbfix, kbsurveynew, kbexpertiseadvanced, kb

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Article Info
Article ID : 2958262
Revision : 2
Created on : 4/9/2020
Published on : 4/9/2020
Exists online : False
Views : 295