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This article describes an issue that occurs on applications that rely on a certain code layout for memory in Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2. An update is available to resolve this issue. Before you install this update, check out the Prerequisites section.

How to obtain this update

Method 1: Windows Update

This update is available from 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 obtained 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 install this update, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you do not 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 does not replace a previously released update.

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 0.17 xxx

    Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • 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 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

Atlthunk.dll

6.3.9600.17415

35,840

29-Oct-2014

01:05

x86

D3dcompiler_47.dll

6.3.9600.17672

3,551,744

03-Feb-2015

00:03

x86

Mfc42.dll

6.6.8063.0

1,204,224

30-Jan-2015

01:42

x86

Mfc42u.dll

6.6.8063.0

1,230,336

30-Jan-2015

01:44

x86

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

File name

File version

File size

Date

Time

Platform

Atlthunk.dll

6.3.9600.17415

48,128

29-Oct-2014

01:28

x64

D3dcompiler_47.dll

6.3.9600.17672

4,298,240

03-Feb-2015

00:02

x64

Mfc42.dll

6.6.8063.0

1,464,832

30-Jan-2015

02:03

x64

Mfc42u.dll

6.6.8063.0

1,488,896

30-Jan-2015

02:03

x64

Atlthunk.dll

6.3.9600.17670

35,840

30-Jan-2015

01:29

x86

D3dcompiler_47.dll

6.3.9600.17672

3,551,744

03-Feb-2015

00:03

x86

Mfc42.dll

6.6.8063.0

1,204,224

30-Jan-2015

01:42

x86

Mfc42u.dll

6.6.8063.0

1,230,336

30-Jan-2015

01:44

x86

For all supported Windows RT 8.1

File name

File version

File size

Date

Time

Platform

D3dcompiler_47.dll

6.3.9600.17672

3,024,896

03-Feb-2015

00:06

Not applicable

Mfc42.dll

6.6.8063.0

1,041,920

30-Jan-2015

01:11

Not applicable

Mfc42u.dll

6.6.8063.0

1,061,376

30-Jan-2015

01:11

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_35f26a18870b688a206b25b0a31469ce_31bf3856ad364e35_6.3.9600.17672_none_09e6e7bec6f9b2ad.manifest

File version

Not applicable

File size

707

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

X86_3bbd090d1e3c86abdc1bc898dcea49ff_31bf3856ad364e35_6.3.9600.17672_none_83a9228d72d4d425.manifest

File version

Not applicable

File size

694

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

X86_c30cc4400ff2912e203b6a9ae62500bb_31bf3856ad364e35_6.3.9600.17672_none_4703b9da1a512195.manifest

File version

Not applicable

File size

696

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

X86_microsoft-windows-atlthunk_31bf3856ad364e35_6.3.9600.17672_none_228f0f17ecb12892.manifest

File version

Not applicable

File size

2,567

Date (UTC)

03-Feb-2015

Time (UTC)

19:40

Platform

Not applicable

File name

X86_microsoft-windows-directx-d3dcompiler_31bf3856ad364e35_6.3.9600.17672_none_7dfa9d1d37a3c079.manifest

File version

Not applicable

File size

1,847

Date (UTC)

03-Feb-2015

Time (UTC)

00:50

Platform

Not applicable

File name

X86_microsoft-windows-mfc42x_31bf3856ad364e35_6.3.9600.17672_none_87bd510a712210cf.manifest

File version

Not applicable

File size

5,352

Date (UTC)

03-Feb-2015

Time (UTC)

00:49

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_35f26a18870b688a206b25b0a31469ce_31bf3856ad364e35_6.3.9600.17672_none_660583427f5723e3.manifest

File version

Not applicable

File size

709

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Amd64_3bbd090d1e3c86abdc1bc898dcea49ff_31bf3856ad364e35_6.3.9600.17672_none_dfc7be112b32455b.manifest

File version

Not applicable

File size

696

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Amd64_4a0414c8caccab3d2e7719ae20171564_31bf3856ad364e35_6.3.9600.17672_none_b10708f58e003400.manifest

File version

Not applicable

File size

711

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Amd64_50514909a050a3e07ddf1ccc68f31a10_31bf3856ad364e35_6.3.9600.17672_none_57aba87c47ae010b.manifest

File version

Not applicable

File size

1,040

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Amd64_ca2edcdb9849fedf7468b2895781855f_31bf3856ad364e35_6.3.9600.17672_none_daa27590d9d29f3c.manifest

File version

Not applicable

File size

698

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Amd64_microsoft-windows-atlthunk_31bf3856ad364e35_6.3.9600.17672_none_7eadaa9ba50e99c8.manifest

File version

Not applicable

File size

2,569

Date (UTC)

03-Feb-2015

Time (UTC)

19:43

Platform

Not applicable

File name

Amd64_microsoft-windows-directx-d3dcompiler_31bf3856ad364e35_6.3.9600.17672_none_da1938a0f00131af.manifest

File version

Not applicable

File size

1,849

Date (UTC)

03-Feb-2015

Time (UTC)

01:30

Platform

Not applicable

File name

Amd64_microsoft-windows-mfc42x_31bf3856ad364e35_6.3.9600.17672_none_e3dbec8e297f8205.manifest

File version

Not applicable

File size

5,356

Date (UTC)

03-Feb-2015

Time (UTC)

00:59

Platform

Not applicable

File name

X86_microsoft-windows-atlthunk_31bf3856ad364e35_6.3.9600.17672_none_228f0f17ecb12892.manifest

File version

Not applicable

File size

2,564

Date (UTC)

03-Feb-2015

Time (UTC)

00:48

Platform

Not applicable

File name

X86_microsoft-windows-directx-d3dcompiler_31bf3856ad364e35_6.3.9600.17672_none_7dfa9d1d37a3c079.manifest

File version

Not applicable

File size

1,847

Date (UTC)

03-Feb-2015

Time (UTC)

00:50

Platform

Not applicable

File name

X86_microsoft-windows-mfc42x_31bf3856ad364e35_6.3.9600.17672_none_87bd510a712210cf.manifest

File version

Not applicable

File size

5,352

Date (UTC)

03-Feb-2015

Time (UTC)

00:49

Platform

Not applicable


Additional files for all supported Windows RT 8.1

File property

Value

File name

Arm_99aeef852ddbf9de38dd00ea7db19d85_31bf3856ad364e35_6.3.9600.17672_none_1fdc01609442bc5f.manifest

File version

Not applicable

File size

707

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Arm_f28d174f8d1a8772b23f983348f43ef4_31bf3856ad364e35_6.3.9600.17672_none_144d58d0f7d68e86.manifest

File version

Not applicable

File size

694

Date (UTC)

03-Feb-2015

Time (UTC)

19:37

Platform

Not applicable

File name

Arm_microsoft-windows-directx-d3dcompiler_31bf3856ad364e35_6.3.9600.17672_none_7dfd0f7537a0df3f.manifest

File version

Not applicable

File size

1,847

Date (UTC)

03-Feb-2015

Time (UTC)

00:39

Platform

Not applicable

File name

Arm_microsoft-windows-mfc42x_31bf3856ad364e35_6.3.9600.17672_none_87bfc362711f2f95.manifest

File version

Not applicable

File size

5,352

Date (UTC)

03-Feb-2015

Time (UTC)

00:38

Platform

Not applicable




Status

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

References

See the terminology that Microsoft uses to describe software updates.

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