Security and Quality Rollup for .NET Framework 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB4578976)

Applies to:

Microsoft .NET Framework 4.8

Summary

Security improvements

An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory. An attacker who successfully exploited the vulnerability could disclose contents of an affected system's memory. To exploit the vulnerability, an authenticated attacker would need to run a specially crafted application. The update addresses the vulnerability by correcting how the .NET Framework handles objects in memory.

To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Quality and reliability improvements

WCF1

- Addressed an issue with WCF services sometimes failing to start when starting multiple services concurrently.

Winforms

- Addressed a regression introduced in .NET Framework 4.8, where Control.AccessibleName, Control.AccessibleRole, and Control.AccessibleDescription properties stopped working for the following controls:Label, GroupBox, ToolStrip, ToolStripItems, StatusStrip, StatusStripItems, PropertyGrid, ProgressBar, ComboBox, MenuStrip, MenuItems, DataGridView.

- Addressed a regression in accessible name for combo box items for data bound combo boxes. .NET Framework 4.8 started using type name instead of the value of the DisplayMember property as an accessible name, this improvement uses the DisplayMember again.

ASP.NET

- Disabled resuse of AppPathModifier in ASP.Net control output.

- HttpCookie objects in the ASP.Net request context will be created with configured defaults for cookie flags instead of .NET-style primitive defaults to match the behavior of `new HttpCookie(name)`.

SQL

- Addressed a failure that sometimes occured when a user connects to one Azure SQL database, performed an enclave based operation, and then connected to another database under the same server that has the same Attestation URL and performed an enclave operation on the second server.

CLR2

- Added a CLR config variable Thread_AssignCpuGroups (1 by default) that can be set to 0 to disable automatic CPU group assignment done by the CLR for new threads created by Thread.Start() and thread pool threads, such that an app may do its own thread-spreading.

- Addressed a rare data corruption that can occur when using new API’s such as Unsafe.ByteOffset<T> which are often used with the new Span types. The corruption could occur when a GC operation is performed while a thread is calling Unsafe.ByteOffset<T> from inside of a loop.

- Addressed an issue regarding timers with very long due times ticking down much sooner than expected when the AppContext switch "Switch.System.Threading.UseNetCoreTimer" is enabled.


1 Windows Communication Foundation (WCF)
2 Common Language Runtime (CLR)

Important

  • As a reminder to advanced IT administrators, updates to .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R2 should only be applied on systems where .NET Framework 3.5 is present and enabled. Customers who attempt to pre-install updates to .NET Framework 3.5 to offline images that do not contain the .NET Framework 3.5 product enabled will expose these systems to failures to enable .NET Framework 3.5 after the systems are online. For more extensive information about deploying .NET Framework 3.5, see Microsoft .NET Framework 3.5 Deployment Considerations.

  • All updates for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 require that update KB 2919355 is installed. We recommend that you install update KB 2919355 on your Windows 8.1-based, Windows RT 8.1-based, or Windows Server 2012 R2-based computer so that you receive updates in the future.

  • 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 in this security update

ASP.Net applications fail during precompilation with error message

Symptoms
After you apply this October 13, 2020 Security and Quality Rollup for .NET Framework 4.8, some ASP.Net applications fail during precompilation. The error message that you receive will likely contain the words “Error ASPCONFIG.”

Cause
An invalid configuration state in either the “sessionState,” “anonymouseIdentification,” or “authentication/forms” sections of “System.web” configuration. This might occur during build-and-publish routines if configuration transformations leave the Web.config file in an intermediate state for precompilation.

Workaround
Customers who observe new unexpected failures or functional issues can implement an application setting by adding (or merging) the following code to the application configuration file. Setting either “true” or “false” will avoid the issue. However, we recommend that you set this value to “true” for sites that do not rely on cookieless features.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
      <appSettings>
          <add key=”aspnet:DisableAppPathModifier” value=”true” />
     </appSettings>
</configuration>

Resolution

This issue was resolved in KB4601058.

ASP.Net applications may not deliver cookieless tokens in the URI

Symptoms
After you apply this October 13, 2020 Security and Quality Rollup for .NET Framework 4.8, some ASP.Net applications may not deliver cookieless tokens in the URI, possibly resulting in 302-redirect loops or lost or missing session state.

Cause
The ASP.Net features for Session State, Anonymous Identification, and Forms Authentication all rely on issuing tokens to a web client, and they all allow the option for those tokens to be delivered in a cookie or embedded in the URI for clients that don’t support cookies. The URI-embedding has long been an insecure and disrecommended practice and this KB quietly disables issuing tokens in URI’s unless one of these three features explicitly requests a cookie mode of “UseUri” in configuration. Configurations that specify “AutoDetect” or “UseDeviceProfile” may inadvertently result in attempted and failed embedding of these tokens in the URI.

Workaround
Customers who observe new unexpected behavior are recommended to change all three cookieless settings to “UseCookies” if possible.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
     <system.web>
          <anonymousidentification cookieless="UseCookies" />
          <sessionState cookieless="UseCookies" />
          <authentication>
               <forms cookieless="UseCookies" />
          </authentication>
     </system.web>
</configuation>

If an application absolutely must continue using URI-embedded tokens and can do so safely, then they can be re-enabled with the following appSeting. But again, it is highly recommended to move away from embedding these tokens in URI’s.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
     <appSettings>
          <add key="aspnet:DisableAppPathModifier" value="false" />
     </appSettings>
</configuation>

Resolution

This issue was resolved in KB4601058.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 4579979 Description of the Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1, RT 8.1, and Windows Server 2012 R2 (KB4579979)

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.8 installed.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

None. This update will be downloaded and installed automatically from Windows Update.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

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

Classification: Security Updates

Prerequisites

To apply this update, you must have .NET Framework 4.8 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 deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20201013 Security update deployment information: October 13, 2020

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces previously released updates 4576630.


File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

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

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File information

File hash information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4578976-x64-NDP48.msu

E6029CD1FDD9C5561EA4CD8819D247138F987C20

E9A78849B99ABA9E40FF93973F3E37BE8CB16B7169B02983D1225A6560693404

Windows8.1-KB4578976-arm-NDP48.msu

FABF6F9353419956BA4FF1394F3D0CE1FF656920

1BDF7CCAD53525AEC66E7BB8049C1B175248D11EFCBD7FA74D95B5EC0B304309

Windows8.1-KB4578976-x86-NDP48.msu

7E8D565BC23A8777A7C61DA1D81901BD0802F296

ACBD743878CFA825510143DA2729FEEF0BDF8008E31543737C65A66A596151E3

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Mscorlib.dll

4.8.4261.0

5,431,672

02-Sep-2020

21:00

x64

None

Not applicable

Normidna.nlp

Not applicable

59,342

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

47,076

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

40,566

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

67,808

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

61,718

15-May-2018

18:06

Not applicable

None

Not applicable

Aspnet_perf.dll

4.8.4261.0

41,848

02-Sep-2020

21:00

x64

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

02-Sep-2020

19:37

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

02-Sep-2020

21:01

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_wp.exe

4.8.4261.0

45,440

02-Sep-2020

21:00

x64

SPN

AMD64_NETFX4-ASP

Clrjit.dll

4.8.4261.0

1,358,200

02-Sep-2020

21:00

x64

None

Not applicable

Clr.dll

4.8.4261.0

11,245,432

02-Sep-2020

21:00

x64

None

Not applicable

Compatjit.dll

4.8.4261.0

1,273,208

02-Sep-2020

21:00

x64

None

Not applicable

Dfdll.dll

4.8.4240.0

214,912

29-Jul-2020

05:27

x64

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

03-Feb-2020

13:25

Not applicable

SPA

AMD64_NETFX4-GLOBALMONOSP

Globalsansserif.compositefont

Not applicable

26,489

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

21-Jul-2020

02:16

Not applicable

None

Not applicable

Mscordacwks.dll

4.8.4261.0

1,801,080

02-Sep-2020

21:00

x64

None

Not applicable

Mscordbi.dll

4.8.4261.0

1,655,160

02-Sep-2020

21:00

x64

None

Not applicable

Mscoreei.dll

4.8.4180.0

689,952

26-Mar-2020

23:10

x64

None

Not applicable

Mscorlib.ni.dll

4.8.4261.0

23,077,120

02-Sep-2020

21:05

x64

None

Not applicable

Penimc.dll

14.8.4240.0

11,656

29-Jul-2020

05:27

x64

None

Not applicable

Penimc2_v0400.dll

4.8.4240.0

120,712

29-Jul-2020

05:27

x64

None

Not applicable

Penimc_v0400.dll

4.8.4240.0

20,352

29-Jul-2020

05:27

x64

None

Not applicable

Peverify.dll

4.8.4261.0

265,592

02-Sep-2020

21:00

x64

None

Not applicable

Presentationframework-systemdata.dll

4.8.4240.0

17,800

29-Jul-2020

06:14

x86

None

Not applicable

Presentationframework.dll

4.8.4240.0

6,269,832

29-Jul-2020

06:14

x86

None

Not applicable

Presentationhost_v0400.dll.mui

4.8.4240.0

77,696

29-Jul-2020

05:27

Not applicable

None

Not applicable

Presentationhost_v0400.dll

4.8.4240.0

302,464

29-Jul-2020

05:27

x64

None

Not applicable

Presentationnative_v0400.dll

4.8.4240.0

1,164,168

29-Jul-2020

05:27

x64

None

Not applicable

Reachframework.dll

4.8.4110.0

677,656

04-Dec-2019

02:55

x86

None

Not applicable

Servicemodel.mof

Not applicable

88,383

25-Feb-2020

03:02

Not applicable

None

Not applicable

Servicemodel.mof.uninstall

Not applicable

896

25-Feb-2020

03:02

Not applicable

None

Not applicable

Servicemonikersupport.dll

4.8.4261.0

27,512

02-Sep-2020

21:00

x64

None

Not applicable

Smdiagnostics.dll

4.8.4261.0

66,328

02-Sep-2020

21:05

x86

None

Not applicable

_smsvchostperfcounters.h

Not applicable

702

06-Dec-2019

22:20

Not applicable

None

Not applicable

_smsvchostperfcounters.ini

Not applicable

133,894

07-Dec-2019

06:04

Not applicable

None

Not applicable

_smsvchostperfcounters_d.ini

Not applicable

39

08-Nov-2019

03:11

Not applicable

None

Not applicable

Smsvchost.exe

4.8.4121.0

139,056

07-Dec-2019

06:03

x86

None

Not applicable

Smsvchost.exe.config

Not applicable

2,262

21-Nov-2019

02:58

Not applicable

None

Not applicable

Sos.dll

4.8.4261.0

921,464

02-Sep-2020

21:00

x64

None

Not applicable

System.activities.presentation.dll

4.8.4150.0

2,127,128

09-Jan-2020

19:46

x86

None

Not applicable

System.activities.dll

4.8.4261.0

1,526,528

02-Sep-2020

21:05

x86

None

Not applicable

System.configuration.dll

4.8.4190.0

421,536

05-Jun-2020

05:04

x86

None

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

None

Not applicable

System.deployment.dll

4.8.4240.0

1,595,136

29-Jul-2020

06:14

x86

None

Not applicable

System.drawing.design.dll

4.8.4210.0

125,192

30-Jun-2020

01:55

x86

None

Not applicable

System.identitymodel.services.dll

4.8.4261.0

191,352

02-Sep-2020

21:05

x86

None

Not applicable

System.identitymodel.dll

4.8.4261.0

1,086,744

02-Sep-2020

21:05

x86

None

Not applicable

System.net.sockets.dll

4.8.4121.0

30,360

07-Dec-2019

06:03

x86

None

Not applicable

System.runtime.serialization.dll

4.8.4261.0

1,047,312

02-Sep-2020

21:05

x86

None

Not applicable

System.security.dll

4.8.4261.0

320,280

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.activities.dll

4.8.4261.0

555,384

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.channels.dll

4.8.4261.0

150,904

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.discovery.dll

4.8.4261.0

301,432

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.internals.dll

4.8.4261.0

246,528

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.washosting.dll

4.8.4261.0

33,144

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.web.dll

4.8.4261.0

321,792

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.dll

4.8.4261.0

6,383,896

02-Sep-2020

21:05

x86

None

Not applicable

System.speech.dll

4.8.4210.0

676,736

30-Jun-2020

01:55

x86

SPE

AMD64_NETFX4-SYSTEM.SP

System.web.applicationservices.dll

4.8.4261.0

63,744

02-Sep-2020

21:05

x86

None

Not applicable

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

None

Not applicable

System.windows.forms.datavisualization.dll

4.8.4210.0

1,712,512

30-Jun-2020

01:55

x86

None

Not applicable

System.windows.controls.ribbon.dll

4.8.4240.0

743,816

29-Jul-2020

06:14

x86

None

Not applicable

System.windows.forms.dll

4.8.4261.0

5,916,416

02-Sep-2020

21:05

x86

None

Not applicable

System.workflow.activities.dll

4.8.4110.0

1,051,112

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.componentmodel.dll

4.8.4110.0

1,557,272

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.runtime.dll

4.8.4110.0

503,064

04-Dec-2019

02:55

x86

None

Not applicable

System.xaml.dll

4.8.4240.0

632,088

29-Jul-2020

06:14

x86

None

Not applicable

System.dll

4.8.4210.0

3,552,520

30-Jun-2020

01:55

x86

None

Not applicable

Uiautomationclientsideproviders.dll

4.8.4240.0

354,184

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationclient.dll

4.8.4240.0

170,888

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationprovider.dll

4.8.4240.0

41,864

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationtypes.dll

4.8.4240.0

215,944

29-Jul-2020

06:14

x86

None

Not applicable

Webengine4.dll

4.8.4261.0

675,192

02-Sep-2020

21:00

x64

None

Not applicable

Webengine.dll

4.8.4261.0

21,368

02-Sep-2020

21:00

x64

None

Not applicable

Windowsbase.dll

4.8.4240.0

1,298,816

29-Jul-2020

06:14

x86

None

Not applicable

Windowsformsintegration.dll

4.8.4150.0

105,240

09-Jan-2020

19:46

x86

None

Not applicable

Workflowservicehostperformancecounters.dll

4.8.4110.0

102,672

04-Dec-2019

02:54

x64

None

Not applicable

Wpfgfx_v0400.dll

4.8.4240.0

2,050,440

29-Jul-2020

05:27

x64

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

08-Nov-2019

23:40

Not applicable

None

Not applicable

Globalsansserif.compositefont

Not applicable

26,489

08-Nov-2019

23:40

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

08-Nov-2019

23:40

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

08-Nov-2019

23:40

Not applicable

None

Not applicable

Presentationcore.dll

4.8.4240.0

3,648,384

29-Jul-2020

05:27

x64

None

Not applicable

System.data.dll

4.8.4261.0

3,542,392

02-Sep-2020

21:00

x64

None

Not applicable

System.printing.dll

4.8.4110.0

400,152

04-Dec-2019

02:54

x64

None

Not applicable

System.web.dll

4.8.4261.0

5,397,368

02-Sep-2020

21:00

x64

None

Not applicable

Presentationframework-systemdata.dll

4.8.4240.0

17,800

29-Jul-2020

06:14

x86

None

Not applicable

Presentationframework.dll

4.8.4240.0

6,269,832

29-Jul-2020

06:14

x86

None

Not applicable

Reachframework.dll

4.8.4110.0

677,656

04-Dec-2019

02:55

x86

None

Not applicable

Smdiagnostics.dll

4.8.4261.0

66,328

02-Sep-2020

21:05

x86

None

Not applicable

Smsvchost.exe

4.8.4121.0

139,056

07-Dec-2019

06:03

x86

None

Not applicable

System.activities.presentation.dll

4.8.4150.0

2,127,128

09-Jan-2020

19:46

x86

None

Not applicable

System.activities.dll

4.8.4261.0

1,526,528

02-Sep-2020

21:05

x86

None

Not applicable

System.configuration.dll

4.8.4190.0

421,536

05-Jun-2020

05:04

x86

None

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

None

Not applicable

System.deployment.dll

4.8.4240.0

1,595,136

29-Jul-2020

06:14

x86

None

Not applicable

System.drawing.design.dll

4.8.4210.0

125,192

30-Jun-2020

01:55

x86

None

Not applicable

System.identitymodel.services.dll

4.8.4261.0

191,352

02-Sep-2020

21:05

x86

None

Not applicable

System.identitymodel.dll

4.8.4261.0

1,086,744

02-Sep-2020

21:05

x86

None

Not applicable

System.net.sockets.dll

4.8.4121.0

30,360

07-Dec-2019

06:03

x86

None

Not applicable

System.runtime.serialization.dll

4.8.4261.0

1,047,312

02-Sep-2020

21:05

x86

None

Not applicable

System.security.dll

4.8.4261.0

320,280

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.activities.dll

4.8.4261.0

555,384

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.channels.dll

4.8.4261.0

150,904

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.discovery.dll

4.8.4261.0

301,432

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.internals.dll

4.8.4261.0

246,528

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.washosting.dll

4.8.4261.0

33,144

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.web.dll

4.8.4261.0

321,792

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.dll

4.8.4261.0

6,383,896

02-Sep-2020

21:05

x86

None

Not applicable

System.speech.dll

4.8.4210.0

676,736

30-Jun-2020

01:55

x86

SPE

MSIL_SYSTEM.SP

System.web.applicationservices.dll

4.8.4261.0

63,744

02-Sep-2020

21:05

x86

None

Not applicable

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

None

Not applicable

System.windows.controls.ribbon.dll

4.8.4240.0

743,816

29-Jul-2020

06:14

x86

None

Not applicable

System.windows.forms.datavisualization.dll

4.8.4210.0

1,712,512

30-Jun-2020

01:55

x86

None

Not applicable

System.windows.forms.dll

4.8.4261.0

5,916,416

02-Sep-2020

21:05

x86

None

Not applicable

System.workflow.activities.dll

4.8.4110.0

1,051,112

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.componentmodel.dll

4.8.4110.0

1,557,272

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.runtime.dll

4.8.4110.0

503,064

04-Dec-2019

02:55

x86

None

Not applicable

System.xaml.dll

4.8.4240.0

632,088

29-Jul-2020

06:14

x86

None

Not applicable

System.dll

4.8.4210.0

3,552,520

30-Jun-2020

01:55

x86

None

Not applicable

Uiautomationclientsideproviders.dll

4.8.4240.0

354,184

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationclient.dll

4.8.4240.0

170,888

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationprovider.dll

4.8.4240.0

41,864

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationtypes.dll

4.8.4240.0

215,944

29-Jul-2020

06:14

x86

None

Not applicable

Windowsbase.dll

4.8.4240.0

1,298,816

29-Jul-2020

06:14

x86

None

Not applicable

Windowsformsintegration.dll

4.8.4150.0

105,240

09-Jan-2020

19:46

x86

None

Not applicable

Mscorlib.dll

4.8.4261.0

5,670,776

02-Sep-2020

21:05

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

47,076

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

40,566

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

67,808

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

61,718

15-May-2018

18:06

Not applicable

None

Not applicable

Aspnet_perf.dll

4.8.4261.0

36,224

02-Sep-2020

21:05

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

02-Sep-2020

19:32

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

02-Sep-2020

21:06

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.8.4261.0

39,808

02-Sep-2020

21:05

x86

SPN

X86_NETFX4-ASP

Clrjit.dll

4.8.4261.0

554,880

02-Sep-2020

21:05

x86

None

Not applicable

Clr.dll

4.8.4261.0

8,037,752

02-Sep-2020

21:05

x86

None

Not applicable

Dfdll.dll

4.8.4240.0

178,056

29-Jul-2020

06:14

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

03-Feb-2020

13:25

Not applicable

SPA

X86_NETFX4-GLOBALMONOSP

Globalsansserif.compositefont

Not applicable

26,489

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

21-Jul-2020

02:16

Not applicable

None

Not applicable

Mscordacwks.dll

4.8.4261.0

1,307,528

02-Sep-2020

21:05

x86

None

Not applicable

Mscordbi.dll

4.8.4261.0

1,188,728

02-Sep-2020

21:05

x86

None

Not applicable

Mscoreei.dll

4.8.4180.0

581,920

26-Mar-2020

23:11

x86

None

Not applicable

Mscorlib.ni.dll

4.8.4261.0

21,037,312

02-Sep-2020

21:05

x86

None

Not applicable

Penimc.dll

14.8.4240.0

11,656

29-Jul-2020

06:14

x86

None

Not applicable

Penimc2_v0400.dll

4.8.4240.0

99,712

29-Jul-2020

06:14

x86

None

Not applicable

Penimc_v0400.dll

4.8.4240.0

18,312

29-Jul-2020

06:14

x86

None

Not applicable

Peverify.dll

4.8.4261.0

182,648

02-Sep-2020

21:05

x86

None

Not applicable

Presentationhost_v0400.dll.mui

4.8.4240.0

77,704

29-Jul-2020

06:14

Not applicable

None

Not applicable

Presentationhost_v0400.dll

4.8.4240.0

233,848

29-Jul-2020

06:14

x86

None

Not applicable

Presentationnative_v0400.dll

4.8.4240.0

923,000

29-Jul-2020

06:14

x86

None

Not applicable

Servicemonikersupport.dll

4.8.4261.0

24,456

02-Sep-2020

21:05

x86

None

Not applicable

Smsvchost.exe.config

Not applicable

2,262

25-Jul-2019

21:42

Not applicable

None

Not applicable

Sos.dll

4.8.4261.0

767,368

02-Sep-2020

21:05

x86

None

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

None

Not applicable

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

None

Not applicable

System.windows.forms.datavisualization.dll

4.8.4210.0

1,712,512

30-Jun-2020

01:55

x86

None

Not applicable

Webengine4.dll

4.8.4261.0

564,600

02-Sep-2020

21:05

x86

None

Not applicable

Webengine.dll

4.8.4261.0

19,320

02-Sep-2020

21:05

x86

None

Not applicable

Workflowservicehostperformancecounters.dll

4.8.4110.0

89,368

04-Dec-2019

02:55

x86

None

Not applicable

Wpfgfx_v0400.dll

4.8.4240.0

1,618,824

29-Jul-2020

06:14

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalsansserif.compositefont

Not applicable

26,489

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

21-Jul-2020

02:16

Not applicable

None

Not applicable

Presentationcore.dll

4.8.4240.0

3,671,432

29-Jul-2020

06:14

x86

None

Not applicable

System.data.dll

4.8.4261.0

3,475,832

02-Sep-2020

21:05

x86

None

Not applicable

System.printing.dll

4.8.4110.0

399,640

04-Dec-2019

02:55

x86

None

Not applicable

System.web.dll

4.8.4261.0

5,409,672

02-Sep-2020

21:05

x86

None

Not applicable

For all supported ARM-based versions

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4261.0

5,678,856

02-Sep-2020

21:01

Not applicable

Normidna.nlp

Not applicable

59,342

15-May-2018

18:06

Not applicable

Normnfc.nlp

Not applicable

47,076

15-May-2018

18:06

Not applicable

Normnfd.nlp

Not applicable

40,566

15-May-2018

18:06

Not applicable

Normnfkc.nlp

Not applicable

67,808

15-May-2018

18:06

Not applicable

Normnfkd.nlp

Not applicable

61,718

15-May-2018

18:06

Not applicable

Clrjit.dll

4.8.4261.0

687,896

02-Sep-2020

21:01

Not applicable

Clr.dll

4.8.4261.0

7,476,472

02-Sep-2020

21:01

Not applicable

Mscordacwks.dll

4.8.4261.0

1,358,600

02-Sep-2020

21:01

Not applicable

Mscordbi.dll

4.8.4261.0

1,213,696

02-Sep-2020

21:01

Not applicable

Mscoreei.dll

4.8.4180.0

596,440

26-Mar-2020

23:05

Not applicable

Mscorlib.ni.dll

4.8.4261.0

22,692,096

02-Sep-2020

21:05

Not applicable

_smsvchostperfcounters.h

Not applicable

702

06-Dec-2019

22:20

Not applicable

_smsvchostperfcounters.ini

Not applicable

133,894

07-Dec-2019

06:04

Not applicable

_smsvchostperfcounters_d.ini

Not applicable

39

09-Nov-2019

00:37

Not applicable

Sos.dll

4.8.4261.0

684,800

02-Sep-2020

21:01

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

Workflowservicehostperformancecounters.dll

4.8.4110.0

76,960

04-Dec-2019

02:52

Not applicable

System.data.dll

4.8.4261.0

3,487,488

02-Sep-2020

21:01

Not applicable

System.web.dll

4.8.4261.0

5,417,728

02-Sep-2020

21:01

Not applicable

Smdiagnostics.dll

4.8.4261.0

66,328

02-Sep-2020

21:05

x86

System.activities.dll

4.8.4261.0

1,526,528

02-Sep-2020

21:05

x86

System.configuration.dll

4.8.4190.0

421,536

05-Jun-2020

05:04

x86

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

System.deployment.dll

4.8.4240.0

1,595,136

29-Jul-2020

06:14

x86

System.drawing.design.dll

4.8.4210.0

125,192

30-Jun-2020

01:55

x86

System.identitymodel.dll

4.8.4261.0

1,086,744

02-Sep-2020

21:05

x86

System.net.sockets.dll

4.8.4121.0

30,360

07-Dec-2019

06:03

x86

System.runtime.serialization.dll

4.8.4261.0

1,047,312

02-Sep-2020

21:05

x86

System.security.dll

4.8.4261.0

320,280

02-Sep-2020

21:05

x86

System.servicemodel.internals.dll

4.8.4261.0

246,528

02-Sep-2020

21:05

x86

System.servicemodel.web.dll

4.8.4261.0

321,792

02-Sep-2020

21:05

x86

System.servicemodel.dll

4.8.4261.0

6,383,896

02-Sep-2020

21:05

x86

System.web.applicationservices.dll

4.8.4261.0

63,744

02-Sep-2020

21:05

x86

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

System.windows.forms.dll

4.8.4261.0

5,916,416

02-Sep-2020

21:05

x86

System.xaml.dll

4.8.4240.0

632,088

29-Jul-2020

06:14

x86

System.dll

4.8.4210.0

3,552,520

30-Jun-2020

01:55

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Presentationframework-systemdata.dll

4.8.4240.0

17,800

29-Jul-2020

06:14

x86

None

Not applicable

Presentationframework.dll

4.8.4240.0

6,269,832

29-Jul-2020

06:14

x86

None

Not applicable

Reachframework.dll

4.8.4110.0

677,656

04-Dec-2019

02:55

x86

None

Not applicable

Smdiagnostics.dll

4.8.4261.0

66,328

02-Sep-2020

21:05

x86

None

Not applicable

Smsvchost.exe

4.8.4121.0

139,056

07-Dec-2019

06:03

x86

None

Not applicable

System.activities.presentation.dll

4.8.4150.0

2,127,128

09-Jan-2020

19:46

x86

None

Not applicable

System.activities.dll

4.8.4261.0

1,526,528

02-Sep-2020

21:05

x86

None

Not applicable

System.configuration.dll

4.8.4190.0

421,536

05-Jun-2020

05:04

x86

None

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

None

Not applicable

System.deployment.dll

4.8.4240.0

1,595,136

29-Jul-2020

06:14

x86

None

Not applicable

System.drawing.design.dll

4.8.4210.0

125,192

30-Jun-2020

01:55

x86

None

Not applicable

System.identitymodel.services.dll

4.8.4261.0

191,352

02-Sep-2020

21:05

x86

None

Not applicable

System.identitymodel.dll

4.8.4261.0

1,086,744

02-Sep-2020

21:05

x86

None

Not applicable

System.net.sockets.dll

4.8.4121.0

30,360

07-Dec-2019

06:03

x86

None

Not applicable

System.runtime.serialization.dll

4.8.4261.0

1,047,312

02-Sep-2020

21:05

x86

None

Not applicable

System.security.dll

4.8.4261.0

320,280

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.activities.dll

4.8.4261.0

555,384

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.channels.dll

4.8.4261.0

150,904

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.discovery.dll

4.8.4261.0

301,432

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.internals.dll

4.8.4261.0

246,528

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.washosting.dll

4.8.4261.0

33,144

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.web.dll

4.8.4261.0

321,792

02-Sep-2020

21:05

x86

None

Not applicable

System.servicemodel.dll

4.8.4261.0

6,383,896

02-Sep-2020

21:05

x86

None

Not applicable

System.speech.dll

4.8.4210.0

676,736

30-Jun-2020

01:55

x86

SPE

MSIL_SYSTEM.SP

System.web.applicationservices.dll

4.8.4261.0

63,744

02-Sep-2020

21:05

x86

None

Not applicable

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

None

Not applicable

System.windows.controls.ribbon.dll

4.8.4240.0

743,816

29-Jul-2020

06:14

x86

None

Not applicable

System.windows.forms.datavisualization.dll

4.8.4210.0

1,712,512

30-Jun-2020

01:55

x86

None

Not applicable

System.windows.forms.dll

4.8.4261.0

5,916,416

02-Sep-2020

21:05

x86

None

Not applicable

System.workflow.activities.dll

4.8.4110.0

1,051,112

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.componentmodel.dll

4.8.4110.0

1,557,272

04-Dec-2019

02:55

x86

None

Not applicable

System.workflow.runtime.dll

4.8.4110.0

503,064

04-Dec-2019

02:55

x86

None

Not applicable

System.xaml.dll

4.8.4240.0

632,088

29-Jul-2020

06:14

x86

None

Not applicable

System.dll

4.8.4210.0

3,552,520

30-Jun-2020

01:55

x86

None

Not applicable

Uiautomationclientsideproviders.dll

4.8.4240.0

354,184

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationclient.dll

4.8.4240.0

170,888

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationprovider.dll

4.8.4240.0

41,864

29-Jul-2020

06:14

x86

None

Not applicable

Uiautomationtypes.dll

4.8.4240.0

215,944

29-Jul-2020

06:14

x86

None

Not applicable

Windowsbase.dll

4.8.4240.0

1,298,816

29-Jul-2020

06:14

x86

None

Not applicable

Windowsformsintegration.dll

4.8.4150.0

105,240

09-Jan-2020

19:46

x86

None

Not applicable

Mscorlib.dll

4.8.4261.0

5,670,776

02-Sep-2020

21:05

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

47,076

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

40,566

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

67,808

15-May-2018

18:06

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

61,718

15-May-2018

18:06

Not applicable

None

Not applicable

Aspnet_perf.dll

4.8.4261.0

36,224

02-Sep-2020

21:05

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

02-Sep-2020

19:32

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

02-Sep-2020

21:06

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.8.4261.0

39,808

02-Sep-2020

21:05

x86

SPN

X86_NETFX4-ASP

Clrjit.dll

4.8.4261.0

554,880

02-Sep-2020

21:05

x86

None

Not applicable

Clr.dll

4.8.4261.0

8,037,752

02-Sep-2020

21:05

x86

None

Not applicable

Dfdll.dll

4.8.4240.0

178,056

29-Jul-2020

06:14

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

03-Feb-2020

13:25

Not applicable

SPA

X86_NETFX4-GLOBALMONOSP

Globalsansserif.compositefont

Not applicable

26,489

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

21-Jul-2020

02:16

Not applicable

None

Not applicable

Mscordacwks.dll

4.8.4261.0

1,307,528

02-Sep-2020

21:05

x86

None

Not applicable

Mscordbi.dll

4.8.4261.0

1,188,728

02-Sep-2020

21:05

x86

None

Not applicable

Mscoreei.dll

4.8.4180.0

581,920

26-Mar-2020

23:11

x86

None

Not applicable

Mscorlib.ni.dll

4.8.4261.0

21,037,312

02-Sep-2020

21:05

x86

None

Not applicable

Penimc.dll

14.8.4240.0

11,656

29-Jul-2020

06:14

x86

None

Not applicable

Penimc2_v0400.dll

4.8.4240.0

99,712

29-Jul-2020

06:14

x86

None

Not applicable

Penimc_v0400.dll

4.8.4240.0

18,312

29-Jul-2020

06:14

x86

None

Not applicable

Peverify.dll

4.8.4261.0

182,648

02-Sep-2020

21:05

x86

None

Not applicable

Presentationhost_v0400.dll.mui

4.8.4240.0

77,704

29-Jul-2020

06:14

Not applicable

None

Not applicable

Presentationhost_v0400.dll

4.8.4240.0

233,848

29-Jul-2020

06:14

x86

None

Not applicable

Presentationnative_v0400.dll

4.8.4240.0

923,000

29-Jul-2020

06:14

x86

None

Not applicable

Servicemodel.mof

Not applicable

88,383

08-Nov-2019

23:28

Not applicable

None

Not applicable

Servicemodel.mof.uninstall

Not applicable

896

08-Nov-2019

23:28

Not applicable

None

Not applicable

Servicemonikersupport.dll

4.8.4261.0

24,456

02-Sep-2020

21:05

x86

None

Not applicable

_smsvchostperfcounters.h

Not applicable

702

06-Dec-2019

22:20

Not applicable

None

Not applicable

_smsvchostperfcounters.ini

Not applicable

133,894

07-Dec-2019

06:04

Not applicable

None

Not applicable

_smsvchostperfcounters_d.ini

Not applicable

39

09-Nov-2019

00:37

Not applicable

None

Not applicable

Smsvchost.exe.config

Not applicable

2,262

25-Jul-2019

21:42

Not applicable

None

Not applicable

Sos.dll

4.8.4261.0

767,368

02-Sep-2020

21:05

x86

None

Not applicable

System.core.dll

4.8.4240.0

1,549,080

29-Jul-2020

06:14

x86

None

Not applicable

System.web.extensions.dll

4.8.4261.0

1,842,432

02-Sep-2020

21:05

x86

None

Not applicable

System.windows.forms.datavisualization.dll

4.8.4210.0

1,712,512

30-Jun-2020

01:55

x86

None

Not applicable

Webengine4.dll

4.8.4261.0

564,600

02-Sep-2020

21:05

x86

None

Not applicable

Webengine.dll

4.8.4261.0

19,320

02-Sep-2020

21:05

x86

None

Not applicable

Workflowservicehostperformancecounters.dll

4.8.4110.0

89,368

04-Dec-2019

02:55

x86

None

Not applicable

Wpfgfx_v0400.dll

4.8.4240.0

1,618,824

29-Jul-2020

06:14

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalsansserif.compositefont

Not applicable

26,489

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

03-Feb-2020

13:25

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

21-Jul-2020

02:16

Not applicable

None

Not applicable

Presentationcore.dll

4.8.4240.0

3,671,432

29-Jul-2020

06:14

x86

None

Not applicable

System.data.dll

4.8.4261.0

3,475,832

02-Sep-2020

21:05

x86

None

Not applicable

System.printing.dll

4.8.4110.0

399,640

04-Dec-2019

02:55

x86

None

Not applicable

System.web.dll

4.8.4261.0

5,409,672

02-Sep-2020

21:05

x86

None

Not applicable

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