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View products that this article applies to.

Introduction

This August 2017 Update for Windows Server 2008 Service Pack 2 (SP2) includes cumulative reliability improvements in the .NET Framework 4.6. Additionally, this preview update for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 includes cumulative reliability improvements 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.

Important

  • 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.

Quality and reliability improvements

ASP.NET

  • After the .NET Framework 4.7 is installed, when you try to open Sitefinity-based web applications, you may notice that they no longer work, and you receive a System.TypeInitializationException. This update fixes this issue.

CLR

  • Unpredictable crashes can occur when custom attributes are read from assemblies that carry an invalid metadata pattern that is emitted by certain pre-v2 compilers.

  • In some cases, a .NET Framework remoting IPC listener thread can stop working because of a race condition in IPCServerChannel.

  • When two threads try to load the same assembly, the process may crash.

SQL

  • When you try to insert items into the cache object by using the Insert overload method Cache.Insert(string, object, CacheDependency, DateTime, TimeSpan), you may notice that the inserted cache items expire much earlier or later than the DateTime (expiration time) that is specified. This fix corrects the cache’s internal time tracking for such items so that they expire at the expected time.

WPF

  • Mixed mode Windows Presentation Framework (WPF) applications that handle first chance exceptions see a System.Argument.Null exception, as TargetFrameworkName is NULL in mixed-mode applications. This update fixes this issue.

  • A WPF application may not always load resources from a resource dictionary assembly if two or more versions of the same assembly are loaded. This update addresses this issue.

  • A WPF application that is running on a touch/stylus-enabled system that creates new windows on separate dispatcher threads will experience a single handle leak per dispatcher thread. In some scenarios, this could lead to handle exhaustion over time.

  • On touch/stylus-enabled systems that have the May 2017 Preview of Quality Rollup for the .NET Framework 4.6, 4.6.1, and 4.6.2 (KB4014606) installed and subsequently got the .NET Framework 4.7 installed, WPF applications may crash on startup and return a COMException.

Windows Forms

  • Some Windows forms applications that use DataGridView or Menu controls or that call constructor for Screen object repeatedly experience performance regressions in the .NET Framework 4.7 because of additional Garbage Collections or displayed empty UI, because they run out of GDI+ handles that are allocated for the process. This occurs because an unnecessary graphics object is created for each screen object and is not disposed of after the screen object is no longer needed. This fix removes these graphics objects.

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:

4035036 August 2017 Preview of the Quality Rollups for the .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7 for Windows 7 SP1 and Windows Server 2008 R2 SP1: August 15, 2017

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

4035039 August 2017 Preview of the Quality Rollups for the .NET Framework 2.0 SP2, 4.5.2, and 4.6 for Windows Server 2008 SP2: August 15, 2017

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 one of the following on the Microsoft Update Catalog website:

  • For Windows Server 2008 SP2, click here.

  • For Windows 7 SP1 and Windows Server 2008 R2 SP1, click here.

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.

  4. WSUS will open a browser window in which you may be prompted to install an ActiveX control. Install the ActiveX control to continue.

  5. Once the ActiveX control is installed, you will see the Microsoft Update Catalog screen. Type 4035039 for Windows Server 2008 SP2 or 4035036 for Windows 7 SP1 and Windows Server 2008 R2 SP1 in the Search box, and then click Search.

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

  7. When you have selected all the packages you need, click View Basket.

  8. Click Import to import the packages to your WSUS server.

  9. Click Close once the packages have been imported to return to WSUS.

The updates are now available for installation through WSUS.

Prerequisites

To apply this update, you must have one of the following installed:

  • The .NET Framework 4.6 on Windows Server 2008 SP2

  • The .NET Framework 4.6, 4.6.1, 4.6.2, or 4.7 on Windows 7 SP1 or Windows Server 2008 R2 SP1

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 update 4024848 that is dated July 18, 2017.

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 the times 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 supported x86-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2106.0

42,672

13-Jul-2017

04:07

aspnet_wp.exe

4.7.2106.0

46,200

13-Jul-2017

04:07

clr.dll

4.7.2106.0

7,221,904

13-Jul-2017

04:07

clrjit.dll

4.7.2106.0

522,912

13-Jul-2017

04:07

dfdll.dll

4.7.2106.0

159,896

13-Jul-2017

04:07

GlobalUserInterface.CompositeFont

116,922

13-Jul-2017

04:07

mscordacwks.dll

4.7.2106.0

1,341,104

13-Jul-2017

04:07

mscordbi.dll

4.7.2106.0

1,164,960

13-Jul-2017

04:07

mscoreei.dll

4.7.2106.0

511,648

13-Jul-2017

04:07

mscorlib.dll

4.7.2106.0

5,614,240

13-Jul-2017

04:07

msvcp120_clr0400.dll

12.0.52519.0

485,576

13-Jul-2017

04:08

msvcr120_clr0400.dll

12.0.52519.0

987,840

13-Jul-2017

04:08

VsVersion.dll

14.7.2106.0

19,112

13-Jul-2017

04:07

peverify.dll

4.7.2106.0

188,576

13-Jul-2017

04:07

PresentationCore.dll

4.7.2106.0

3,616,096

13-Jul-2017

04:07

PresentationFramework.dll

4.7.2106.0

6,200,176

13-Jul-2017

04:07

PresentationHost_v0400.dll

4.7.2106.0

197,336

13-Jul-2017

04:07

PresentationHost_v0400.dll.mui

4.7.2106.0

84,712

13-Jul-2017

04:07

PresentationNative_v0400.dll

4.7.2106.0

827,104

13-Jul-2017

04:07

ServiceMonikerSupport.dll

4.7.2106.0

29,400

13-Jul-2017

04:08

SMDiagnostics.dll

4.7.2106.0

73,384

13-Jul-2017

04:07

SOS.dll

4.7.2106.0

743,568

13-Jul-2017

04:07

System.Activities.dll

4.7.2106.0

1,532,608

13-Jul-2017

04:07

System.ComponentModel.DataAnnotations.dll

4.7.2106.0

126,264

13-Jul-2017

04:07

System.Core.dll

4.7.2106.0

1,381,536

13-Jul-2017

04:07

System.Data.Entity.dll

4.7.2106.0

4,034,248

13-Jul-2017

04:07

System.IdentityModel.dll

4.7.2106.0

1,088,728

13-Jul-2017

04:07

System.IdentityModel.Services.dll

4.7.2106.0

198,392

13-Jul-2017

04:07

System.Runtime.Serialization.dll

4.7.2106.0

1,052,928

13-Jul-2017

04:07

System.ServiceModel.Channels.dll

4.7.2106.0

157,944

13-Jul-2017

04:07

System.ServiceModel.Discovery.dll

4.7.2106.0

308,472

13-Jul-2017

04:07

System.ServiceModel.dll

4.7.2106.0

6,311,120

13-Jul-2017

04:07

System.ServiceModel.Internals.dll

4.7.2106.0

254,216

13-Jul-2017

04:07

System.ServiceModel.Routing.dll

4.7.2106.0

130,800

13-Jul-2017

04:07

System.ServiceModel.WasHosting.dll

4.7.2106.0

39,672

13-Jul-2017

04:08

System.Web.ApplicationServices.dll

4.7.2106.0

70,928

13-Jul-2017

04:07

System.Web.Extensions.dll

4.7.2106.0

1,849,560

13-Jul-2017

04:07

System.Workflow.Activities.dll

4.7.2106.0

1,051,368

13-Jul-2017

04:08

System.Workflow.ComponentModel.dll

4.7.2106.0

1,541,880

13-Jul-2017

04:08

System.Workflow.Runtime.dll

4.7.2106.0

499,424

13-Jul-2017

04:08

System.Runtime.Caching.dll

4.7.2106.0

109,944

13-Jul-2017

04:07

System.Data.dll

4.7.2106.0

3,391,152

13-Jul-2017

04:07

System.Data.SqlXml.dll

4.7.2106.0

734,408

13-Jul-2017

04:07

System.Deployment.dll

4.7.2106.0

845,504

13-Jul-2017

04:07

System.DirectoryServices.Protocols.dll

4.7.2106.0

201,512

13-Jul-2017

04:07

System.dll

4.7.2106.0

3,526,272

13-Jul-2017

04:07

System.Drawing.dll

4.7.2106.0

600,240

13-Jul-2017

04:07

System.Management.dll

4.7.2106.0

415,424

13-Jul-2017

04:07

System.Runtime.Remoting.dll

4.7.2106.0

346,856

13-Jul-2017

04:07

System.Security.dll

4.7.2106.0

316,600

13-Jul-2017

04:07

System.Transactions.dll

4.7.2106.0

307,408

13-Jul-2017

04:07

System.Web.dll

4.7.2106.0

5,405,864

13-Jul-2017

04:07

System.Windows.Controls.Ribbon.dll

4.7.2106.0

742,808

13-Jul-2017

04:07

System.Windows.Forms.dll

4.7.2106.0

5,181,656

13-Jul-2017

04:07

System.Xaml.dll

4.7.2106.0

641,184

13-Jul-2017

04:07

System.Xml.dll

4.7.2106.0

2,666,648

13-Jul-2017

04:07

webengine.dll

4.7.2106.0

24,744

13-Jul-2017

04:07

webengine4.dll

4.7.2106.0

550,056

13-Jul-2017

04:07

WindowsBase.dll

4.7.2106.0

1,282,376

13-Jul-2017

04:07

WMINet_Utils.dll

4.7.2106.0

136,368

13-Jul-2017

04:07

WorkflowServiceHostPerformanceCounters.dll

4.7.2106.0

89,376

13-Jul-2017

04:07

WPFFontCache_v0400.exe.mui

4.7.2106.0

19,160

13-Jul-2017

04:07

WPFFontCache_v0400.exe

4.7.2106.0

25,720

13-Jul-2017

04:07

wpfgfx_v0400.dll

4.7.2106.0

1,344,184

13-Jul-2017

04:07

Placeholder.dll

4.7.2106.0

24,752

13-Jul-2017

04:07

PenIMC2_v0400.dll

4.7.2106.0

82,104

13-Jul-2017

04:07

For all supported x64-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2106.0

46,256

13-Jul-2017

04:23

Aspnet_perf.dll

4.7.2106.0

42,672

13-Jul-2017

04:07

aspnet_wp.exe

4.7.2106.0

50,808

13-Jul-2017

04:23

aspnet_wp.exe

4.7.2106.0

46,200

13-Jul-2017

04:07

clr.dll

4.7.2106.0

10,326,160

13-Jul-2017

04:23

clr.dll

4.7.2106.0

7,221,904

13-Jul-2017

04:07

clrjit.dll

4.7.2106.0

1,129,112

13-Jul-2017

04:23

clrjit.dll

4.7.2106.0

522,912

13-Jul-2017

04:07

compatjit.dll

4.7.2106.0

1,259,688

13-Jul-2017

04:23

dfdll.dll

4.7.2106.0

191,640

13-Jul-2017

04:23

dfdll.dll

4.7.2106.0

159,896

13-Jul-2017

04:07

GlobalUserInterface.CompositeFont

116,922

13-Jul-2017

04:07

mscordacwks.dll

4.7.2106.0

1,838,256

13-Jul-2017

04:23

mscordacwks.dll

4.7.2106.0

1,341,104

13-Jul-2017

04:07

mscordbi.dll

4.7.2106.0

1,618,592

13-Jul-2017

04:23

mscordbi.dll

4.7.2106.0

1,164,960

13-Jul-2017

04:07

mscoreei.dll

4.7.2106.0

636,064

13-Jul-2017

04:23

mscoreei.dll

4.7.2106.0

511,648

13-Jul-2017

04:07

mscorlib.dll

4.7.2106.0

5,401,760

13-Jul-2017

04:23

mscorlib.dll

4.7.2106.0

5,614,240

13-Jul-2017

04:07

msvcp120_clr0400.dll

12.0.52519.0

690,008

13-Jul-2017

04:23

msvcp120_clr0400.dll

12.0.52519.0

485,576

13-Jul-2017

04:08

msvcr120_clr0400.dll

12.0.52519.0

993,632

13-Jul-2017

04:23

msvcr120_clr0400.dll

12.0.52519.0

987,840

13-Jul-2017

04:08

VsVersion.dll

14.7.2106.0

19,112

13-Jul-2017

04:23

VsVersion.dll

14.7.2106.0

19,112

13-Jul-2017

04:07

peverify.dll

4.7.2106.0

260,256

13-Jul-2017

04:23

peverify.dll

4.7.2106.0

188,576

13-Jul-2017

04:07

PresentationCore.dll

4.7.2106.0

3,590,336

13-Jul-2017

04:23

PresentationCore.dll

4.7.2106.0

3,616,096

13-Jul-2017

04:07

PresentationFramework.dll

4.7.2106.0

6,200,176

13-Jul-2017

04:07

PresentationHost_v0400.dll

4.7.2106.0

256,728

13-Jul-2017

04:23

PresentationHost_v0400.dll.mui

4.7.2106.0

84,712

13-Jul-2017

04:23

PresentationHost_v0400.dll

4.7.2106.0

197,336

13-Jul-2017

04:07

PresentationHost_v0400.dll.mui

4.7.2106.0

84,712

13-Jul-2017

04:07

PresentationNative_v0400.dll

4.7.2106.0

1,109,728

13-Jul-2017

04:23

PresentationNative_v0400.dll

4.7.2106.0

827,104

13-Jul-2017

04:07

ServiceMonikerSupport.dll

4.7.2106.0

31,448

13-Jul-2017

04:23

ServiceMonikerSupport.dll

4.7.2106.0

29,400

13-Jul-2017

04:08

SMDiagnostics.dll

4.7.2106.0

73,384

13-Jul-2017

04:07

SOS.dll

4.7.2106.0

872,080

13-Jul-2017

04:23

SOS.dll

4.7.2106.0

743,568

13-Jul-2017

04:07

System.Activities.dll

4.7.2106.0

1,532,608

13-Jul-2017

04:07

System.ComponentModel.DataAnnotations.dll

4.7.2106.0

126,264

13-Jul-2017

04:07

System.Core.dll

4.7.2106.0

1,381,536

13-Jul-2017

04:07

System.Data.Entity.dll

4.7.2106.0

4,034,248

13-Jul-2017

04:07

System.IdentityModel.dll

4.7.2106.0

1,088,728

13-Jul-2017

04:07

System.IdentityModel.Services.dll

4.7.2106.0

198,392

13-Jul-2017

04:07

System.Runtime.Serialization.dll

4.7.2106.0

1,052,928

13-Jul-2017

04:07

System.ServiceModel.Channels.dll

4.7.2106.0

157,944

13-Jul-2017

04:07

System.ServiceModel.Discovery.dll

4.7.2106.0

308,472

13-Jul-2017

04:07

System.ServiceModel.dll

4.7.2106.0

6,311,120

13-Jul-2017

04:07

System.ServiceModel.Internals.dll

4.7.2106.0

254,216

13-Jul-2017

04:07

System.ServiceModel.Routing.dll

4.7.2106.0

130,800

13-Jul-2017

04:07

System.ServiceModel.WasHosting.dll

4.7.2106.0

39,672

13-Jul-2017

04:08

System.Web.ApplicationServices.dll

4.7.2106.0

70,928

13-Jul-2017

04:07

System.Web.Extensions.dll

4.7.2106.0

1,849,560

13-Jul-2017

04:07

System.Workflow.Activities.dll

4.7.2106.0

1,051,368

13-Jul-2017

04:08

System.Workflow.ComponentModel.dll

4.7.2106.0

1,541,880

13-Jul-2017

04:08

System.Workflow.Runtime.dll

4.7.2106.0

499,424

13-Jul-2017

04:08

System.Runtime.Caching.dll

4.7.2106.0

109,944

13-Jul-2017

04:07

System.Data.dll

4.7.2106.0

3,455,152

13-Jul-2017

04:23

System.Data.dll

4.7.2106.0

3,391,152

13-Jul-2017

04:07

System.Data.SqlXml.dll

4.7.2106.0

734,408

13-Jul-2017

04:07

System.Deployment.dll

4.7.2106.0

845,504

13-Jul-2017

04:07

System.DirectoryServices.Protocols.dll

4.7.2106.0

201,512

13-Jul-2017

04:07

System.dll

4.7.2106.0

3,526,272

13-Jul-2017

04:07

System.Drawing.dll

4.7.2106.0

600,240

13-Jul-2017

04:07

System.Management.dll

4.7.2106.0

415,424

13-Jul-2017

04:07

System.Runtime.Remoting.dll

4.7.2106.0

346,856

13-Jul-2017

04:07

System.Security.dll

4.7.2106.0

316,600

13-Jul-2017

04:07

System.Transactions.dll

4.7.2106.0

310,992

13-Jul-2017

04:23

System.Transactions.dll

4.7.2106.0

307,408

13-Jul-2017

04:07

System.Web.dll

4.7.2106.0

5,388,968

13-Jul-2017

04:23

System.Web.dll

4.7.2106.0

5,405,864

13-Jul-2017

04:07

System.Windows.Controls.Ribbon.dll

4.7.2106.0

742,808

13-Jul-2017

04:07

System.Windows.Forms.dll

4.7.2106.0

5,181,656

13-Jul-2017

04:07

System.Xaml.dll

4.7.2106.0

641,184

13-Jul-2017

04:07

System.XML.dll

4.7.2106.0

2,666,648

13-Jul-2017

04:07

webengine.dll

4.7.2106.0

26,280

13-Jul-2017

04:23

webengine.dll

4.7.2106.0

24,744

13-Jul-2017

04:07

webengine4.dll

4.7.2106.0

667,816

13-Jul-2017

04:23

webengine4.dll

4.7.2106.0

550,056

13-Jul-2017

04:07

WindowsBase.dll

4.7.2106.0

1,282,376

13-Jul-2017

04:07

WMINet_Utils.dll

4.7.2106.0

188,080

13-Jul-2017

04:23

WMINet_Utils.dll

4.7.2106.0

136,368

13-Jul-2017

04:07

WorkflowServiceHostPerformanceCounters.dll

4.7.2106.0

101,152

13-Jul-2017

04:23

WorkflowServiceHostPerformanceCounters.dll

4.7.2106.0

89,376

13-Jul-2017

04:07

WPFFontCache_v0400.exe.mui

4.7.2106.0

19,160

13-Jul-2017

06:59

WPFFontCache_v0400.exe.mui

4.7.2106.0

19,160

13-Jul-2017

04:07

WPFFontCache_v0400.exe

4.7.2106.0

26,744

13-Jul-2017

06:59

WPFFontCache_v0400.exe

4.7.2106.0

25,720

13-Jul-2017

04:07

wpfgfx_v0400.dll

4.7.2106.0

1,762,992

13-Jul-2017

04:23

wpfgfx_v0400.dll

4.7.2106.0

1,344,184

13-Jul-2017

04:07

Placeholder.dll

4.7.2106.0

25,776

13-Jul-2017

04:23

Placeholder.dll

4.7.2106.0

24,752

13-Jul-2017

04:07

PenIMC2_v0400.dll

4.7.2106.0

99,000

13-Jul-2017

04:23

PenIMC2_v0400.dll

4.7.2106.0

82,104

13-Jul-2017

04:07

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 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

  • Microsoft .NET Framework 4.6 when used with:

    • Windows Server 2008 Service Pack 2

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