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Introduction

This August 2017 Update for Windows 8.1 and Windows Server 2012 R2 fixes an issue in the .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the "Prerequisites" and "Restart requirement" sections.

Issues fixed

Common Language Runtime (CLR)

  • Applications that run on the .NET Framework do not respect the settings that are specified in the registry for AppContext switches. Regardless of the registry option setting for an AppContext flag, the application behaves as if the value specified is set to "false."

How to get this update

For Windows 8.1 and Windows Server 2012 R2

This update is available by manual download only.

Manual download

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Prerequisites

To apply this update, you must have the .NET Framework 4.6, 4.6.1, 4.6.2, or 4.7 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

File information

The English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and 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 times may change when you perform certain operations on the files.

For all x86-based systems

File name

File version

File size

Date

Time

mscorlib.dll

4.7.2110.0

5,614,240

29-Jul-2017

02:29

normidna.nlp

59,342

15-Jun-2017

05:28

normnfc.nlp

47,076

15-Jun-2017

05:28

normnfd.nlp

40,566

15-Jun-2017

05:28

normnfkc.nlp

67,808

15-Jun-2017

05:28

normnfkd.nlp

61,718

15-Jun-2017

05:28

clrjit.dll

4.7.2110.0

522,904

29-Jul-2017

02:29

clr.dll

4.7.2110.0

7,221,904

29-Jul-2017

02:29

mscordacwks.dll

4.7.2110.0

1,341,104

29-Jul-2017

02:29

mscordbi.dll

4.7.2110.0

1,164,960

29-Jul-2017

02:29

mscorlib.ni.dll

4.7.2110.0

20,518,048

29-Jul-2017

02:29

msvcp120_clr0400.dll

12.0.52519.0

485,576

28-Jul-2017

23:45

msvcr120_clr0400.dll

12.0.52519.0

987,840

28-Jul-2017

23:45

peverify.dll

4.7.2110.0

188,576

29-Jul-2017

02:29

sos.dll

4.7.2110.0

743,568

29-Jul-2017

02:29

For all x64-based systems

File name

File version

File size

Date

Time

mscorlib.dll

4.7.2110.0

5,401,760

29-Jul-2017

02:22

normidna.nlp

59,342

15-Jun-2017

05:28

normnfc.nlp

47,076

15-Jun-2017

05:28

normnfd.nlp

40,566

15-Jun-2017

05:28

normnfkc.nlp

67,808

15-Jun-2017

05:28

normnfkd.nlp

61,718

15-Jun-2017

05:28

clrjit.dll

4.7.2110.0

1,129,112

29-Jul-2017

02:22

clr.dll

4.7.2110.0

10,326,160

29-Jul-2017

02:22

compatjit.dll

4.7.2110.0

1,259,688

29-Jul-2017

02:22

mscordacwks.dll

4.7.2110.0

1,838,256

29-Jul-2017

02:22

mscordbi.dll

4.7.2110.0

1,618,592

29-Jul-2017

02:22

mscorlib.ni.dll

4.7.2110.0

22,551,712

29-Jul-2017

02:29

msvcp120_clr0400.dll

12.0.52519.0

690,008

28-Jul-2017

23:45

msvcr120_clr0400.dll

12.0.52519.0

993,632

28-Jul-2017

23:45

peverify.dll

4.7.2110.0

260,256

29-Jul-2017

02:22

sos.dll

4.7.2110.0

872,080

29-Jul-2017

02:22

mscorlib.dll

4.7.2110.0

5,614,240

29-Jul-2017

02:29

normidna.nlp

59,342

15-Jun-2017

05:28

normnfc.nlp

47,076

15-Jun-2017

05:28

normnfd.nlp

40,566

15-Jun-2017

05:28

normnfkc.nlp

67,808

15-Jun-2017

05:28

normnfkd.nlp

61,718

15-Jun-2017

05:28

clrjit.dll

4.7.2110.0

522,904

29-Jul-2017

02:29

clr.dll

4.7.2110.0

7,221,904

29-Jul-2017

02:29

mscordacwks.dll

4.7.2110.0

1,341,104

29-Jul-2017

02:29

mscordbi.dll

4.7.2110.0

1,164,960

29-Jul-2017

02:29

mscorlib.ni.dll

4.7.2110.0

20,518,048

29-Jul-2017

02:29

msvcp120_clr0400.dll

12.0.52519.0

485,576

28-Jul-2017

23:45

msvcr120_clr0400.dll

12.0.52519.0

987,840

28-Jul-2017

23:45

peverify.dll

4.7.2110.0

188,576

29-Jul-2017

02:29

sos.dll

4.7.2110.0

743,568

29-Jul-2017

02:29

Applies to

This article applies to the following:

  • Microsoft .NET Framework 4.6, 4.6.1, 4.6.2, and 4.7 when used with:

    • Windows Server 2012 R2

    • Windows 8.1

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