Compatibility update for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2: September 2015

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 September 2015.

For more information about the improvements, see the "Applications or devices that experience a change in behavior after you install this update" section and the "Applications and devices that are included in this update" section.

How to get this update

Method 1: Windows Update

This update is provided as anĀ Optional update on Windows Update. For more information about how to run Windows Update, seeĀ 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 system

Update

All supported x86-based versions of Windows 8.1

Download Download the package now.

All supported x64-based versions of Windows 8.1

Download Download the package now.

All supported x64-based versions of Windows Server 2012 R2

Download Download 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 information

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 do not work correctly.

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 Devices

Version

Behavior after you install the update

Microchip HUB

not available

Storage devices that are connected to the Microchip hub works correctly after safe removal.

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.

Windows 8.1 and Windows Server 2012 R2 file information and 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

    6.3.960 0.16 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

    6.3.960 0.17xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

  • 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, 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 all supported x86-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Apphelp.dll

6.3.9600.17415

642,560

29-Oct-2014

02:00

x86

Sdbinst.exe

6.3.9600.17725

21,504

11-Mar-2015

01:09

x86

Shimeng.dll

6.3.9600.17415

5,632

29-Oct-2014

02:00

x86

Acres.dll

6.3.9600.16384

310,784

22-Aug-2013

04:16

x86

Sysmain.sdb

Not applicable

3,833,752

18-Jul-2015

17:54

Not applicable

Msimain.sdb

Not applicable

2,726,550

18-Jul-2015

17:54

Not applicable

Acgenral.dll

6.3.9600.17824

2,490,368

07-May-2015

15:23

x86

Acwinrt.dll

6.3.9600.17415

8,704

29-Oct-2014

01:01

x86

Acspecfc.dll

6.3.9600.17725

449,024

11-Mar-2015

00:35

x86

Drvmain.sdb

Not applicable

122,270

18-Jul-2015

17:54

Not applicable

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Apphelp.dll

6.3.9600.17824

564,224

07-May-2015

16:47

x64

Sdbinst.exe

6.3.9600.17725

24,576

11-Mar-2015

01:49

x64

Shimeng.dll

6.3.9600.17415

7,168

29-Oct-2014

02:45

x64

Sysmain.sdb

Not applicable

433,488

18-Jul-2015

17:54

Not applicable

Msimain.sdb

Not applicable

2,756,926

18-Jul-2015

17:54

Not applicable

Acgenral.dll

6.3.9600.17725

317,440

11-Mar-2015

00:58

x64

Acwinrt.dll

6.3.9600.17415

10,752

29-Oct-2014

01:21

x64

Acspecfc.dll

6.3.9600.17725

42,496

11-Mar-2015

01:05

x64

Drvmain.sdb

Not applicable

123,548

18-Jul-2015

17:54

Not applicable

Apphelp.dll

6.3.9600.17415

642,560

29-Oct-2014

02:00

x86

Sdbinst.exe

6.3.9600.17725

21,504

11-Mar-2015

01:09

x86

Shimeng.dll

6.3.9600.17415

5,632

29-Oct-2014

02:00

x86

Acres.dll

6.3.9600.16384

310,784

22-Aug-2013

04:16

x86

Sysmain.sdb

Not applicable

3,833,752

18-Jul-2015

17:54

Not applicable

Acgenral.dll

6.3.9600.17824

2,490,368

07-May-2015

15:23

x86

Acwinrt.dll

6.3.9600.17415

8,704

29-Oct-2014

01:01

x86

Acspecfc.dll

6.3.9600.17725

449,024

11-Mar-2015

00:35

x86

For all supported Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Apphelp.dll

6.3.9600.17824

397,312

07-May-2015

15:45

Not applicable

Sdbinst.exe

6.3.9600.17824

20,992

07-May-2015

15:39

Not applicable

Shimeng.dll

6.3.9600.17031

6,144

22-Feb-2014

09:59

Not applicable

Acres.dll

6.3.9600.16384

310,784

22-Aug-2013

03:16

Not applicable

Sysmain.sdb

Not applicable

39,336

18-Jul-2015

17:54

Not applicable

Msimain.sdb

Not applicable

286

18-Jul-2015

17:54

Not applicable

Acgenral.dll

6.3.9600.17824

9,728

07-May-2015

15:45

Not applicable

Acwinrt.dll

6.3.9600.16384

8,704

22-Aug-2013

02:15

Not applicable

Acspecfc.dll

6.3.9600.17824

9,728

07-May-2015

15:27

Not applicable

Drvmain.sdb

Not applicable

62,870

18-Jul-2015

17:54

Not applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File property

Value

File name

X86_235a70110e98efdddd41874112de8892_31bf3856ad364e35_6.3.9600.17962_none_5a18eac81a32fb7b.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_35f3355da408b1d7ca3c7b4b89dd4cb0_31bf3856ad364e35_6.3.9600.17962_none_18b1ef00162c179c.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_463ab71020cd47b305b1bc67a3659b52_31bf3856ad364e35_6.3.9600.17962_none_31709bb94dd6a410.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_8628e0b4f96452a594ff658194cdff4b_31bf3856ad364e35_6.3.9600.17962_none_5ebbee1e586ea71c.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_ad09c52445b0281db31a654371d358f1_31bf3856ad364e35_6.3.9600.17962_none_cb59e53df2187418.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_d7e271db3625b1e75c901efaacfc252f_31bf3856ad364e35_6.3.9600.17962_none_166ffe720cdaab19.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-infrastructure_31bf3856ad364e35_6.3.9600.17962_none_69c45c25684509fc.manifest

File version

Not applicable

File size

13,037

Date (UTC)

22-Jul-2015

Time (UTC)

23:26

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17962_none_a0d590910dd79f06.manifest

File version

Not applicable

File size

3,312

Date (UTC)

22-Jul-2015

Time (UTC)

23:26

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17962_none_a0d690db0dd6b85d.manifest

File version

Not applicable

File size

2,558

Date (UTC)

22-Jul-2015

Time (UTC)

15:23

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17962_none_a0d791250dd5d1b4.manifest

File version

Not applicable

File size

3,310

Date (UTC)

22-Jul-2015

Time (UTC)

23:26

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17962_none_a0d8916f0dd4eb0b.manifest

File version

Not applicable

File size

2,555

Date (UTC)

22-Jul-2015

Time (UTC)

23:26

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17962_none_a0db924d0dd23710.manifest

File version

Not applicable

File size

1,867

Date (UTC)

22-Jul-2015

Time (UTC)

15:23

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property

Value

File name

Amd64_05bdcb8d28bde300a5fc6e617acaaeb2_31bf3856ad364e35_6.3.9600.17962_none_f7b1ccd020253269.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_1ee48dd1e02e660d67c4f79f43e77093_31bf3856ad364e35_6.3.9600.17962_none_16e1bcd98b24cf84.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_3137e1ff6955855dd2aee921b268f1dc_31bf3856ad364e35_6.3.9600.17962_none_7da26c1845e06bce.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_35f3355da408b1d7ca3c7b4b89dd4cb0_31bf3856ad364e35_6.3.9600.17962_none_74d08a83ce8988d2.manifest

File version

Not applicable

File size

727

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_463ab71020cd47b305b1bc67a3659b52_31bf3856ad364e35_6.3.9600.17962_none_8d8f373d06341546.manifest

File version

Not applicable

File size

727

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_57f0eceb29dfbdc9df8ed2f5b6b15aed_31bf3856ad364e35_6.3.9600.17962_none_fb4a5ccc6784b03e.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_5f0d423b177a45e0aa0b84fe42b47fb9_31bf3856ad364e35_6.3.9600.17962_none_7253e05220b1b7a5.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_70af66ce9869a39d8c52745c05e29f0c_31bf3856ad364e35_6.3.9600.17962_none_88b6e06ec75c3d02.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_783860862fcc60e7310a5a9e892694a2_31bf3856ad364e35_6.3.9600.17962_none_641cd33d687a586c.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_8c166cf7f5aab4ad183799c0028657e2_31bf3856ad364e35_6.3.9600.17962_none_f41a7d83f8dde0c7.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_9e1b2956713fc1eddb8c6ce5c23d4c24_31bf3856ad364e35_6.3.9600.17962_none_617b90d177fcaa4a.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_b9bdcb887175ba87ccb5279295dd400a_31bf3856ad364e35_6.3.9600.17962_none_82be70f9283540d2.manifest

File version

Not applicable

File size

729

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-infrastructure_31bf3856ad364e35_6.3.9600.17962_none_c5e2f7a920a27b32.manifest

File version

Not applicable

File size

13,368

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17962_none_fcf42c14c635103c.manifest

File version

Not applicable

File size

2,573

Date (UTC)

22-Jul-2015

Time (UTC)

16:16

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17962_none_fcf52c5ec6342993.manifest

File version

Not applicable

File size

2,562

Date (UTC)

22-Jul-2015

Time (UTC)

16:16

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17962_none_fcf62ca8c63342ea.manifest

File version

Not applicable

File size

3,336

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17962_none_fcf72cf2c6325c41.manifest

File version

Not applicable

File size

2,570

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

Amd64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17962_none_fcfa2dd0c62fa846.manifest

File version

Not applicable

File size

1,869

Date (UTC)

22-Jul-2015

Time (UTC)

16:16

Platform

Not applicable

File name

Wow64_microsoft-windows-a..ence-infrastructure_31bf3856ad364e35_6.3.9600.17962_none_d037a1fb55033d2d.manifest

File version

Not applicable

File size

13,039

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

Wow64_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17962_none_0748d666fa95d237.manifest

File version

Not applicable

File size

3,314

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

Wow64_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17962_none_0749d6b0fa94eb8e.manifest

File version

Not applicable

File size

1,141

Date (UTC)

22-Jul-2015

Time (UTC)

15:22

Platform

Not applicable

File name

Wow64_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17962_none_074ed822fa906a41.manifest

File version

Not applicable

File size

450

Date (UTC)

22-Jul-2015

Time (UTC)

15:22

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17962_none_a0d791250dd5d1b4.manifest

File version

Not applicable

File size

3,310

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

File name

X86_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17962_none_a0d8916f0dd4eb0b.manifest

File version

Not applicable

File size

2,555

Date (UTC)

22-Jul-2015

Time (UTC)

23:31

Platform

Not applicable

Additional files for all supported Windows RT 8.1

File property

Value

File name

Arm_07a9ea95105fa220f749686f696488ff_31bf3856ad364e35_6.3.9600.17962_none_db1798b8ffdc294d.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_3383c6ea191731cfa074e257747670b1_31bf3856ad364e35_6.3.9600.17962_none_8ab6216f7dcc8f50.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_3a2861af7c718fd5d57c6d44582a3c3c_31bf3856ad364e35_6.3.9600.17962_none_81ab655450926fde.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_6757ccbbd129bcb9cb74f8d86598c82f_31bf3856ad364e35_6.3.9600.17962_none_2368f952bed37bc0.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_8ca04b87ff8b3583525055d1b13157d5_31bf3856ad364e35_6.3.9600.17962_none_70da39c18bad5ed3.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_ba67730b59cd8a06ff959dd4077aa053_31bf3856ad364e35_6.3.9600.17962_none_05b22467b6a3253d.manifest

File version

Not applicable

File size

725

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-infrastructure_31bf3856ad364e35_6.3.9600.17962_none_69c6ce7d684228c2.manifest

File version

Not applicable

File size

13,037

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-mitigations-c1_31bf3856ad364e35_6.3.9600.17962_none_a0d802e90dd4bdcc.manifest

File version

Not applicable

File size

3,312

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-mitigations-c2_31bf3856ad364e35_6.3.9600.17962_none_a0d903330dd3d723.manifest

File version

Not applicable

File size

2,558

Date (UTC)

22-Jul-2015

Time (UTC)

15:12

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-mitigations-c3_31bf3856ad364e35_6.3.9600.17962_none_a0da037d0dd2f07a.manifest

File version

Not applicable

File size

3,310

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-mitigations-c4_31bf3856ad364e35_6.3.9600.17962_none_a0db03c70dd209d1.manifest

File version

Not applicable

File size

2,555

Date (UTC)

22-Jul-2015

Time (UTC)

23:23

Platform

Not applicable

File name

Arm_microsoft-windows-a..ence-mitigations-c7_31bf3856ad364e35_6.3.9600.17962_none_a0de04a50dcf55d6.manifest

File version

Not applicable

File size

1,867

Date (UTC)

22-Jul-2015

Time (UTC)

15:12

Platform

Not applicable

References

See the terminology that Microsoft uses to describe software updates.

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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