Description of Preview of Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Server 2008 R2 SP1 and for .NET Framework 4.6 on Server 2008 SP2 (KB 4073701)

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:

Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.
Expand ComputerName, and then click Action.
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.
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.
Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.
After you select all the packages that you require, click View Basket.
To import the packages to your WSUS server, click Import.
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

Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.
Expand ComputerName, and then click Action.
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.
After the ActiveX control is installed, you will see the Microsoft Update Catalog screen. Enter 4074806 in the Search box, and then click Search.
Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.
After you select all the packages that you require, click View Basket.
To import the packages to your WSUS server, click Import.
To return to WSUS, click Close after the packages are imported.

Description of Preview of Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Server 2008 R2 SP1 and for .NET Framework 4.6 on Server 2008 SP2 (KB 4073701)

Introduction

Known issues

Quality and reliability improvements

Additional information about this update

How to get this update

Windows Update

Microsoft Update Catalog

Windows Software Update Services (WSUS)

Prerequisites

Restart requirement

Update replacement information

File information

Need more help?

Want more options?

Was this information helpful?

Thank you for your feedback!

Introduction

Known issues

Quality and reliability improvements

Additional information about this update

How to get this update

Windows Update

Microsoft Update Catalog

Windows Software Update Services (WSUS)

Prerequisites

Restart requirement

Update replacement information

File information

File attributes

Need more help?

Want more options?

Was this information helpful?

Thank you for your feedback!