Introduction

This February 2018 update for Windows 7 SP1 and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1. This update is also for Windows Server 2008 SP2 and includes cumulative reliability improvements in .NET Framework 4.6. 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.

Important

  • All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 require the d3dcompiler_47.dll update to be installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll update, see KB 4019990 for Windows 7 SP1 and Windows Server 2008 R2 SP1. Or, see KB 4019478 for Windows Server 2008 SP2.

  • 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.

Known issues

.NET Framework applications might experience System.Security.Cryptography.Xml.Reference.LoadXml exception errors after you install the February 2018 .NET Framework Preview of Quality Rollup updates for Windows 7 SP1, and Server 2008 SP2 and Server 2008 R2 SP1.

Because of this known issue, this update is no longer available from Windows Update, WSUS, or Microsoft Update Catalog as of February 23, 2018.

For more information about this known issue, go to the following article in the Microsoft Knowledge Base:

4091227 Exceptions in System.Security.Cryptography.Xml.Reference.LoadXml after you install the February 2018 .NET Framework Preview of Quality Rollup updates for Windows 7 SP1, Server 2008 R2 SP1, and Server 2008 SP2

Quality and reliability improvements

For .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1

BCL1

  • Fixes an issue in which applications that make heavy use of System.Diagnostics.StackTrace or Exception.StackTrace might run slower on .NET Framework 4.7.1.

  • Fixes an issue in which CultureAwareComparer does not correctly serialize across versions.

NCL2

  • Fixes an issue in which the AppContext switch Switch.System.Net.DontEnableSchSendAuxRecord does not correctly let the switch be enabled.

  • Fixes an issue with connection limits when HttpClient is used to send requests to loopback addresses. For more information about this issue, go to the following topic on the Microsoft website:

    ServicePoint.ConnectionLimit default behavior with loopback changed unexpectedly

WCF3

  • Fixes an issue in which deserialization is slow when big object lists are encountered. The fix makes the binary formatter faster.

WPF4

  • Fixes an issue in which Dual GPU systems encounter visual artifacts when you run WPF applications in High Contrast.

  • Fixes an issue in a specific cases in which System.Windows.Controls.PrintDialog() throws an Arithmetic Overflow exception.

  • Fixes an issue in which WPF applications that are running on touch or stylus-enabled systems may see crashes or hangs after a period of no touch activity.

1 Base Class Library (BCL)
2 Network Class Library (NCL)
3 Windows Communication Foundation (WCF)
4 Windows Presentation Foundation (WPF)

Additional information about this update

For more information about this update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:

4074805 February 2018 Preview of the Quality Rollups for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Server 2008 R2 SP1 (KB 4074805)

For more information about this update as it relates to Windows Server 2008 SP2, see the following article in the Microsoft Knowledge Base:

4074808 February 2018 Preview of the Quality Rollups for .NET Framework 2.0 SP2, 3.0 SP2, 4.5.2, and 4.6 for Windows Server 2008 SP2 (KB 4074808)

How to get this update

Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Microsoft Update Catalog

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

  • For Windows 7 SP1 and Server 2008 R2 SP1, go to update KB 4074805.

  • For Windows Server 2008 SP2, go to update KB 4074808.

Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

    Note WSUS opens a browser window in which you may be prompted to install an ActiveX control. You will need to install the ActiveX control to continue.

  4. After the ActiveX control is installed, you will see the Microsoft Update Catalog screen. Enter 4074805 for Windows 7 SP1 and Server 2008 R2 SP1 or enter 4074808 for Windows Server 2008 SP2 in the Search box, and then click Search.

  5. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.

  6. After you select all the packages that you require, click View Basket.

  7. To import the packages to your WSUS server, click Import.

  8. To return to WSUS, click Close after the packages are imported.

The updates are now available for installation through WSUS.

Prerequisites

To apply this update, you must have .NET Framework 4.6, 4.6.1, 4.6.2, 4.7 or 4.7.1 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.

Update replacement information

This update replaces previously released updates KB 4057273 and KB 4042201.

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 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.

For all supported x86-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2623.0

42,648

17-Jan-2018

18:28

aspnet_wp.exe

4.7.2623.0

46,176

17-Jan-2018

18:28

clr.dll

4.7.2633.0

7,239,800

17-Jan-2018

18:29

clrjit.dll

4.7.2633.0

522,888

17-Jan-2018

18:29

dfdll.dll

4.7.2117.0

159,872

17-Jan-2018

18:28

GlobalUserInterface.CompositeFont

182,000

31-Jan-2018

18:29

mscordacwks.dll

4.7.2633.0

1,341,088

17-Jan-2018

18:29

mscordbi.dll

4.7.2633.0

1,167,504

17-Jan-2018

18:29

mscoreei.dll

4.7.2117.0

511,632

17-Jan-2018

18:28

mscorlib.dll

4.7.2633.0

5,631,632

17-Jan-2018

18:29

msvcp120_clr0400.dll

12.0.52519.0

485,576

17-Jan-2018

18:29

msvcr120_clr0400.dll

12.0.52519.0

987,840

17-Jan-2018

18:29

VsVersion.dll

14.7.2563.0

19,096

17-Jan-2018

18:28

peverify.dll

4.7.2633.0

188,560

17-Jan-2018

18:29

PresentationCore.dll

4.7.2633.0

3,635,016

17-Jan-2018

18:29

PresentationFramework.dll

4.7.2633.0

6,210,912

17-Jan-2018

18:29

PresentationHost_v0400.dll

4.7.2633.0

197,320

17-Jan-2018

18:29

PresentationHost_v0400.dll.mui

4.7.2633.0

84,696

17-Jan-2018

18:29

PresentationNative_v0400.dll

4.7.2633.0

827,088

17-Jan-2018

18:29

ServiceMonikerSupport.dll

4.7.2623.0

29,376

17-Jan-2018

18:28

SMDiagnostics.dll

4.7.2623.0

73,376

17-Jan-2018

18:28

SOS.dll

4.7.2633.0

743,552

17-Jan-2018

18:29

System.Activities.dll

4.7.2623.0

1,532,600

17-Jan-2018

18:28

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

17-Jan-2018

18:28

System.Core.dll

4.7.2633.0

1,482,296

17-Jan-2018

18:29

System.Data.Entity.dll

4.7.2117.0

4,034,232

17-Jan-2018

18:28

System.DirectoryServices.AccountManagement.dll

4.7.2623.0

296,216

17-Jan-2018

18:28

System.IdentityModel.dll

4.7.2623.0

1,088,712

17-Jan-2018

18:28

System.IdentityModel.Services.dll

4.7.2623.0

198,368

17-Jan-2018

18:28

System.Runtime.Serialization.dll

4.7.2623.0

1,054,456

17-Jan-2018

18:28

System.ServiceModel.Channels.dll

4.7.2623.0

157,912

17-Jan-2018

18:28

System.ServiceModel.Discovery.dll

4.7.2623.0

308,448

17-Jan-2018

18:28

System.ServiceModel.dll

4.7.2623.0

6,315,712

17-Jan-2018

18:28

System.ServiceModel.Internals.dll

4.7.2623.0

253,696

17-Jan-2018

18:28

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

17-Jan-2018

18:28

System.ServiceModel.WasHosting.dll

4.7.2623.0

39,648

17-Jan-2018

18:28

System.Web.ApplicationServices.dll

4.7.2623.0

70,912

17-Jan-2018

18:28

System.Web.Extensions.dll

4.7.2623.0

1,849,544

17-Jan-2018

18:28

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

17-Jan-2018

18:28

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

17-Jan-2018

18:28

System.Workflow.Runtime.dll

4.7.2117.0

499,400

17-Jan-2018

18:28

System.Runtime.Caching.dll

4.7.2117.0

109,928

17-Jan-2018

18:28

System.Data.dll

4.7.2623.0

3,397,272

17-Jan-2018

18:28

System.Data.SqlXml.dll

4.7.2612.0

734,400

17-Jan-2018

18:28

System.Deployment.dll

4.7.2117.0

845,496

17-Jan-2018

18:28

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

17-Jan-2018

18:28

System.dll

4.7.2117.0

3,525,376

17-Jan-2018

18:28

System.Drawing.dll

4.7.2117.0

599,344

17-Jan-2018

18:28

System.Management.dll

4.7.2117.0

415,416

17-Jan-2018

18:28

System.Net.Http.dll

4.7.2633.0

203,344

17-Jan-2018

18:29

System.Runtime.Remoting.dll

4.7.2117.0

346,464

17-Jan-2018

18:28

System.Security.dll

4.7.2117.0

316,592

17-Jan-2018

18:28

System.Transactions.dll

4.7.2117.0

306,496

17-Jan-2018

18:28

System.Web.dll

4.7.2623.0

5,409,936

17-Jan-2018

18:28

System.Windows.Controls.Ribbon.dll

4.7.2633.0

742,632

17-Jan-2018

18:29

System.Windows.Forms.dll

4.7.2117.0

5,181,648

17-Jan-2018

18:28

System.Xaml.dll

4.7.2633.0

642,104

17-Jan-2018

18:29

System.Xml.dll

4.7.2612.0

2,670,224

17-Jan-2018

18:28

UIAutomationClient.dll

4.7.2633.0

178,000

17-Jan-2018

18:29

UIAutomationClientsideProviders.dll

4.7.2633.0

361,352

17-Jan-2018

18:29

UIAutomationProvider.dll

4.7.2633.0

48,992

17-Jan-2018

18:29

UIAutomationTypes.dll

4.7.2633.0

221,008

17-Jan-2018

18:29

webengine.dll

4.7.2623.0

24,712

17-Jan-2018

18:28

webengine4.dll

4.7.2623.0

550,032

17-Jan-2018

18:28

WindowsBase.dll

4.7.2633.0

1,289,528

17-Jan-2018

18:29

WMINet_Utils.dll

4.7.2117.0

136,344

17-Jan-2018

18:28

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

17-Jan-2018

18:28

WPFFontCache_v0400.exe.mui

4.7.2633.0

19,144

17-Jan-2018

18:29

WPFFontCache_v0400.exe

4.7.2633.0

25,704

17-Jan-2018

18:29

wpfgfx_v0400.dll

4.7.2633.0

1,345,184

17-Jan-2018

18:29

Placeholder.dll

4.7.2563.0

24,728

17-Jan-2018

18:28

PenIMC2_v0400.dll

4.7.2633.0

86,184

17-Jan-2018

18:29

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2623.0

46,232

17-Jan-2018

18:28

Aspnet_perf.dll

4.7.2623.0

42,648

17-Jan-2018

18:28

aspnet_wp.exe

4.7.2623.0

50,784

17-Jan-2018

18:28

aspnet_wp.exe

4.7.2623.0

46,176

17-Jan-2018

18:28

clr.dll

4.7.2633.0

10,363,520

17-Jan-2018

18:45

clr.dll

4.7.2633.0

7,239,800

17-Jan-2018

18:29

clrjit.dll

4.7.2633.0

1,208,456

17-Jan-2018

18:45

clrjit.dll

4.7.2633.0

522,888

17-Jan-2018

18:29

compatjit.dll

4.7.2633.0

1,259,672

17-Jan-2018

18:45

dfdll.dll

4.7.2117.0

191,616

17-Jan-2018

18:28

dfdll.dll

4.7.2117.0

159,872

17-Jan-2018

18:28

GlobalUserInterface.CompositeFont

182,000

31-Jan-2018

18:29

mscordacwks.dll

4.7.2633.0

1,838,240

17-Jan-2018

18:45

mscordacwks.dll

4.7.2633.0

1,341,088

17-Jan-2018

18:29

mscordbi.dll

4.7.2633.0

1,621,136

17-Jan-2018

18:45

mscordbi.dll

4.7.2633.0

1,167,504

17-Jan-2018

18:29

mscoreei.dll

4.7.2117.0

636,048

17-Jan-2018

18:28

mscoreei.dll

4.7.2117.0

511,632

17-Jan-2018

18:28

mscorlib.dll

4.7.2633.0

5,413,520

17-Jan-2018

18:45

mscorlib.dll

4.7.2633.0

5,631,632

17-Jan-2018

18:29

msvcp120_clr0400.dll

12.0.52519.0

690,008

17-Jan-2018

18:45

msvcp120_clr0400.dll

12.0.52519.0

485,576

17-Jan-2018

18:29

msvcr120_clr0400.dll

12.0.52519.0

993,632

17-Jan-2018

18:45

msvcr120_clr0400.dll

12.0.52519.0

987,840

17-Jan-2018

18:29

VsVersion.dll

14.7.2563.0

19,096

17-Jan-2018

18:28

VsVersion.dll

14.7.2563.0

19,096

17-Jan-2018

18:28

peverify.dll

4.7.2633.0

260,240

17-Jan-2018

18:45

peverify.dll

4.7.2633.0

188,560

17-Jan-2018

18:29

PresentationCore.dll

4.7.2633.0

3,612,848

17-Jan-2018

18:45

PresentationCore.dll

4.7.2633.0

3,635,016

17-Jan-2018

18:29

PresentationFramework.dll

4.7.2633.0

6,210,912

17-Jan-2018

18:29

PresentationHost_v0400.dll

4.7.2633.0

252,104

17-Jan-2018

18:45

PresentationHost_v0400.dll.mui

4.7.2633.0

84,696

17-Jan-2018

18:45

PresentationHost_v0400.dll

4.7.2633.0

197,320

17-Jan-2018

18:29

PresentationHost_v0400.dll.mui

4.7.2633.0

84,696

17-Jan-2018

18:29

PresentationNative_v0400.dll

4.7.2633.0

1,109,712

17-Jan-2018

18:45

PresentationNative_v0400.dll

4.7.2633.0

827,088

17-Jan-2018

18:29

ServiceMonikerSupport.dll

4.7.2623.0

31,424

17-Jan-2018

18:28

ServiceMonikerSupport.dll

4.7.2623.0

29,376

17-Jan-2018

18:28

SMDiagnostics.dll

4.7.2623.0

73,376

17-Jan-2018

18:28

SOS.dll

4.7.2633.0

872,064

17-Jan-2018

18:45

SOS.dll

4.7.2633.0

743,552

17-Jan-2018

18:29

System.Activities.dll

4.7.2623.0

1,532,600

17-Jan-2018

18:28

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

17-Jan-2018

18:28

System.Core.dll

4.7.2633.0

1,482,296

17-Jan-2018

18:29

System.Data.Entity.dll

4.7.2117.0

4,034,232

17-Jan-2018

18:28

System.DirectoryServices.AccountManagement.dll

4.7.2623.0

296,216

17-Jan-2018

18:28

System.IdentityModel.dll

4.7.2623.0

1,088,712

17-Jan-2018

18:28

System.IdentityModel.Services.dll

4.7.2623.0

198,368

17-Jan-2018

18:28

System.Runtime.Serialization.dll

4.7.2623.0

1,054,456

17-Jan-2018

18:28

System.ServiceModel.Channels.dll

4.7.2623.0

157,912

17-Jan-2018

18:28

System.ServiceModel.Discovery.dll

4.7.2623.0

308,448

17-Jan-2018

18:28

System.ServiceModel.dll

4.7.2623.0

6,315,712

17-Jan-2018

18:28

System.ServiceModel.Internals.dll

4.7.2623.0

253,696

17-Jan-2018

18:28

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

17-Jan-2018

18:28

System.ServiceModel.WasHosting.dll

4.7.2623.0

39,648

17-Jan-2018

18:28

System.Web.ApplicationServices.dll

4.7.2623.0

70,912

17-Jan-2018

18:28

System.Web.Extensions.dll

4.7.2623.0

1,849,544

17-Jan-2018

18:28

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

17-Jan-2018

18:28

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

17-Jan-2018

18:28

System.Workflow.Runtime.dll

4.7.2117.0

499,400

17-Jan-2018

18:28

System.Runtime.Caching.dll

4.7.2117.0

109,928

17-Jan-2018

18:28

System.Data.dll

4.7.2623.0

3,461,784

17-Jan-2018

18:28

System.Data.dll

4.7.2623.0

3,397,272

17-Jan-2018

18:28

System.Data.SqlXml.dll

4.7.2612.0

734,400

17-Jan-2018

18:28

System.Deployment.dll

4.7.2117.0

845,496

17-Jan-2018

18:28

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

17-Jan-2018

18:28

System.dll

4.7.2117.0

3,525,376

17-Jan-2018

18:28

System.Drawing.dll

4.7.2117.0

599,344

17-Jan-2018

18:28

System.Management.dll

4.7.2117.0

415,416

17-Jan-2018

18:28

System.Net.Http.dll

4.7.2633.0

203,344

17-Jan-2018

18:29

System.Runtime.Remoting.dll

4.7.2117.0

346,464

17-Jan-2018

18:28

System.Security.dll

4.7.2117.0

316,592

17-Jan-2018

18:28

System.Transactions.dll

4.7.2117.0

310,968

17-Jan-2018

18:28

System.Transactions.dll

4.7.2117.0

306,496

17-Jan-2018

18:28

System.Web.dll

4.7.2623.0

5,397,136

17-Jan-2018

18:28

System.Web.dll

4.7.2623.0

5,409,936

17-Jan-2018

18:28

System.Windows.Controls.Ribbon.dll

4.7.2633.0

742,632

17-Jan-2018

18:29

System.Windows.Forms.dll

4.7.2117.0

5,181,648

17-Jan-2018

18:28

System.Xaml.dll

4.7.2633.0

642,104

17-Jan-2018

18:29

System.XML.dll

4.7.2612.0

2,670,224

17-Jan-2018

18:28

UIAutomationClient.dll

4.7.2633.0

178,000

17-Jan-2018

18:29

UIAutomationClientsideProviders.dll

4.7.2633.0

361,352

17-Jan-2018

18:29

UIAutomationProvider.dll

4.7.2633.0

48,992

17-Jan-2018

18:29

UIAutomationTypes.dll

4.7.2633.0

221,008

17-Jan-2018

18:29

webengine.dll

4.7.2623.0

26,256

17-Jan-2018

18:28

webengine.dll

4.7.2623.0

24,712

17-Jan-2018

18:28

webengine4.dll

4.7.2623.0

667,792

17-Jan-2018

18:28

webengine4.dll

4.7.2623.0

550,032

17-Jan-2018

18:28

WindowsBase.dll

4.7.2633.0

1,289,528

17-Jan-2018

18:29

WMINet_Utils.dll

4.7.2117.0

188,064

17-Jan-2018

18:28

WMINet_Utils.dll

4.7.2117.0

136,344

17-Jan-2018

18:28

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

100,240

17-Jan-2018

18:28

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

17-Jan-2018

18:28

WPFFontCache_v0400.exe.mui

4.7.2633.0

19,144

17-Jan-2018

18:45

WPFFontCache_v0400.exe.mui

4.7.2633.0

19,144

17-Jan-2018

18:29

WPFFontCache_v0400.exe

4.7.2633.0

26,720

17-Jan-2018

18:45

WPFFontCache_v0400.exe

4.7.2633.0

25,704

17-Jan-2018

18:29

wpfgfx_v0400.dll

4.7.2633.0

1,764,000

17-Jan-2018

18:45

wpfgfx_v0400.dll

4.7.2633.0

1,345,184

17-Jan-2018

18:29

Placeholder.dll

4.7.2563.0

25,760

17-Jan-2018

18:28

Placeholder.dll

4.7.2563.0

24,728

17-Jan-2018

18:28

PenIMC2_v0400.dll

4.7.2633.0

104,608

17-Jan-2018

18:45

PenIMC2_v0400.dll

4.7.2633.0

86,184

17-Jan-2018

18:29

 

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

    Note WSUS opens a browser window in which you may be prompted to install an ActiveX control. You will need to install the ActiveX control to continue.

  4. After the ActiveX control is installed, you will see the Microsoft Update Catalog screen. Enter 4074806 in the Search box, and then click Search.

  5. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.

  6. After you select all the packages that you require, click View Basket.

  7. To import the packages to your WSUS server, click Import.

  8. To return to WSUS, click Close after the packages are imported.

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