Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows 7 SP1 and Server 2008 R2 SP1, and for .NET Framework 4.6 for Server 2008 SP2 (KB4515854)

Applies to:

Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6.1, Microsoft .NET Framework 4.6.2, Microsoft .NET Framework 4.7, Microsoft .NET Framework 4.7.1, Microsoft .NET Framework 4.7.2

The September 24, 2019, update for Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1, and Windows Server 2008 Service Pack 2 (SP2) includes cumulative reliability improvements in Microsoft .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

Starting in August, 2019, updates to .NET Framework 4.6 and later for Windows Server 2008 SP2, Windows Server 2008 R2 SP1, and Windows 7 SP1, require SHA-2 code signing support. To avoid installation issues, make sure that you have all the latest Windows updates installed before you apply this update. For more information about SHA-2 code signing support updates, see KB 4474419.
All updates for .NET Framework 4.6 for Windows Server 2008 Service Pack 2 (SP2) require that the d3dcompiler_47.dll update is 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, see KB 4019990.
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

BCL¹	Addresses an issue that affects thread contention that occurs in BinaryFormatter.GetTypeInformation by using ConcurrentDictionary to handle multi-thread access.
WPF²	Addresses an issue that affects a WPF ComboBox (or any Selector) within a DataGrid cell that can try to change its selection properties (SelectedIndex, SelectedItem, SelectedValue) when the cell's data item is re-virtualized or removed from the underlying collection. This can occur if the Selector's ItemSource property is data bound through the cell's DataContext setting. Depending on the virtualization mode and the bindings that are declared for the selection properties, the symptoms can include unexpected changes (to null) of the data item's properties, and unexpected displays (as null) of other data items that re-use the UI that was previously attached to the revirtualized item. Addresses an issue in which a WPF TextBox or RichTextBox element that has spell checking enabled crashes and returns an "ExecutionEngineException" error in some situations, including inserting text near a hyperlink. Addresses an issue that affects Per-Monitor Aware WPF applications that host System-Aware or Unaware child windows and that run on .NET Framework 4.8. This .NET version occasionally crashes and returns a "System.Collections.Generic.KeyNotFoundException" exception.
CLR³	Addresses an issue that might cause handle leaks to occur in scenarios that repeatedly load and unload Mscoree.dll. Addresses rare cases that incorrectly cause process termination instead of delivering the expected NullReferenceException result.

¹ Base Class Library (BCL)
² Windows Presentation Foundation (WPF)
³ Common Language Runtime (CLR)

Additional information about this update

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

4516554 Description of the Preview of Quality Rollup for .NET Framework 2.0, 3.0, 4.5.2, 4.6 on Windows Server 2008 SP2 (KB4516554)
4516551 Description of the Preview of Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Server 2008 R2 SP1 and Server 2008 (KB4516551)

How to obtain and install the update

Method 1: 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, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

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

Method 3: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.
Expand ComputerName, and then select Action.
Select Import Updates.
WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.
After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Enter 4516554 for Windows Server 2008 SP2 or enter 4516551 for Windows 7 SP1 and Server 2008 R2 SP1 into the Search box, and then select Search.
Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.
After you select all the packages that you require, select View Basket.
To import the packages to your WSUS server, select Import.
After the packages are imported, select Close to return to WSUS.

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, 4.7.1, or 4.7.2 for Windows 7 SP1 and Server 2008 R2 SP1 installed, or .NET Framework 4.6 for Server 2008 SP2 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 4512196 for Windows Server 2008 SP2 and 4512193 for Windows 7 SP1 and Windows Server 2008 R2 SP1.

File information

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

x86 NDP47

File name	File version	File size	Date	Time	Platform
Dhtmlheader.html	Not applicable	16,118	15-Jul-2019	02:09	Not applicable
Header.bmp	Not applicable	7,306	19-Apr-2018	17:11	Not applicable
Ndp47-kb4515854.msp	Not applicable	27,152,384	07-Aug-2019	19:32	Not applicable
Parameterinfo.xml	Not applicable	91,494	07-Aug-2019	20:47	Not applicable
Setup.exe	14.7.3468.0	88,880	06-Aug-2019	06:46	x86
Setupengine.dll	14.7.3468.0	889,832	06-Aug-2019	06:46	x86
Setupui.dll	14.7.3468.0	320,792	06-Aug-2019	06:46	x86
Setupui.xsd	Not applicable	32,572	25-Jun-2019	23:20	Not applicable
Setuputility.exe	14.7.3468.0	222,288	06-Aug-2019	06:46	x86
Splashscreen.bmp	Not applicable	196,662	19-Apr-2018	17:17	Not applicable
Sqmapi.dll	6.2.9200.16384	226,456	15-Jul-2019	02:08	x86
Strings.xml	Not applicable	14,092	19-Apr-2018	17:17	Not applicable
Uiinfo.xml	Not applicable	36,428	19-Apr-2018	17:17	Not applicable
Watermark.bmp	Not applicable	110,348	19-Apr-2018	17:11	Not applicable
Eula.rtf	Not applicable	124,495	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	79,748	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,464	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	160,295	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	68,560	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	25,880	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	132,348	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	85,600	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	131,637	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	83,182	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	111,186	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	88,064	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	142,041	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	90,142	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	32,024	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	128,314	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	82,766	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,464	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,247	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	83,646	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	156,440	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	87,632	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	146,392	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	78,194	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	28,952	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	158,420	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	86,506	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	147,275	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	85,478	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	155,616	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	74,568	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	27,416	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	259,432	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	72,824	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	26,904	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,812	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	85,032	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	148,376	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	84,480	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,976	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	151,635	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	87,510	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,992	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,226	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	84,326	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	188,741	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	86,108	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	149,236	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	83,160	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	140,171	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	83,110	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	146,273	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	68,518	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	26,088	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	147,662	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	85,974	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	129,883	15-Jul-2019	02:04	Not applicable
Localizeddata.xml	Not applicable	85,224	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Print.ico	Not applicable	126,132	15-Jul-2019	02:09	Not applicable
Rotate1.ico	Not applicable	143,901	15-Jul-2019	02:09	Not applicable
Rotate10.ico	Not applicable	143,932	15-Jul-2019	02:09	Not applicable
Rotate2.ico	Not applicable	144,110	15-Jul-2019	02:09	Not applicable
Rotate3.ico	Not applicable	144,151	15-Jul-2019	02:09	Not applicable
Rotate4.ico	Not applicable	144,033	15-Jul-2019	02:09	Not applicable
Rotate5.ico	Not applicable	143,871	15-Jul-2019	02:09	Not applicable
Rotate6.ico	Not applicable	143,881	15-Jul-2019	02:09	Not applicable
Rotate7.ico	Not applicable	144,084	15-Jul-2019	02:09	Not applicable
Rotate8.ico	Not applicable	143,835	15-Jul-2019	02:09	Not applicable
Rotate9.ico	Not applicable	144,064	15-Jul-2019	02:09	Not applicable
Save.ico	Not applicable	126,548	15-Jul-2019	02:09	Not applicable
Setup.ico	Not applicable	126,246	15-Jul-2019	02:09	Not applicable
Stop.ico	Not applicable	190,199	15-Jul-2019	02:09	Not applicable
Sysreqmet.ico	Not applicable	136,313	15-Jul-2019	02:09	Not applicable
Sysreqnotmet.ico	Not applicable	143,990	15-Jul-2019	02:09	Not applicable
Warn.ico	Not applicable	199,341	15-Jul-2019	02:09	Not applicable

x64 NDP47

File name	File version	File size	Date	Time	Platform
Dhtmlheader.html	Not applicable	16,118	25-Jun-2019	23:20	Not applicable
Header.bmp	Not applicable	7,306	25-Jun-2019	23:04	Not applicable
Ndp47-kb4515854.msp	Not applicable	41,791,488	07-Aug-2019	19:42	Not applicable
Parameterinfo.xml	Not applicable	91,494	07-Aug-2019	20:47	Not applicable
Setup.exe	14.7.3468.0	88,880	06-Aug-2019	06:46	x86
Setupengine.dll	14.7.3468.0	889,832	06-Aug-2019	06:46	x86
Setupui.dll	14.7.3468.0	320,792	06-Aug-2019	06:46	x86
Setupui.xsd	Not applicable	32,572	25-Jun-2019	23:20	Not applicable
Setuputility.exe	14.7.3468.0	222,288	06-Aug-2019	06:46	x86
Splashscreen.bmp	Not applicable	196,662	25-Jun-2019	23:21	Not applicable
Sqmapi.dll	6.2.9200.16384	226,456	25-Jun-2019	23:17	x86
Strings.xml	Not applicable	14,092	25-Jun-2019	23:21	Not applicable
Uiinfo.xml	Not applicable	36,428	25-Jun-2019	23:21	Not applicable
Watermark.bmp	Not applicable	110,348	25-Jun-2019	23:04	Not applicable
Eula.rtf	Not applicable	124,495	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	79,748	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,464	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	160,295	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	68,560	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	25,880	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	132,348	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	85,600	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	131,637	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	83,182	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	111,186	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	88,064	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	142,041	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	90,142	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	32,024	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	128,314	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	82,766	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,464	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,247	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	83,646	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	156,440	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	87,632	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	146,392	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	78,194	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	28,952	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	158,420	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	86,506	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	147,275	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	85,478	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	155,616	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	74,568	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	27,416	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	259,432	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	72,824	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	26,904	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,812	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	85,032	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,512	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	148,376	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	84,480	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	29,976	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	151,635	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	87,510	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,992	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	137,226	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	84,326	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	188,741	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	86,108	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	149,236	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	83,160	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	140,171	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	83,110	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	30,488	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	146,273	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	68,518	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	26,088	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	147,662	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	85,974	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Eula.rtf	Not applicable	129,883	25-Jun-2019	23:04	Not applicable
Localizeddata.xml	Not applicable	85,224	07-Aug-2019	19:07	Not applicable
Setupresources.dll	14.7.3468.0	31,000	06-Aug-2019	06:53	x86
Print.ico	Not applicable	126,132	25-Jun-2019	23:20	Not applicable
Rotate1.ico	Not applicable	143,901	25-Jun-2019	23:20	Not applicable
Rotate10.ico	Not applicable	143,932	25-Jun-2019	23:20	Not applicable
Rotate2.ico	Not applicable	144,110	25-Jun-2019	23:20	Not applicable
Rotate3.ico	Not applicable	144,151	25-Jun-2019	23:20	Not applicable
Rotate4.ico	Not applicable	144,033	25-Jun-2019	23:20	Not applicable
Rotate5.ico	Not applicable	143,871	25-Jun-2019	23:20	Not applicable
Rotate6.ico	Not applicable	143,881	25-Jun-2019	23:20	Not applicable
Rotate7.ico	Not applicable	144,084	25-Jun-2019	23:20	Not applicable
Rotate8.ico	Not applicable	143,835	25-Jun-2019	23:20	Not applicable
Rotate9.ico	Not applicable	144,064	25-Jun-2019	23:20	Not applicable
Save.ico	Not applicable	126,548	25-Jun-2019	23:20	Not applicable
Setup.ico	Not applicable	126,246	25-Jun-2019	23:20	Not applicable
Stop.ico	Not applicable	190,199	25-Jun-2019	23:20	Not applicable
Sysreqmet.ico	Not applicable	136,313	25-Jun-2019	23:20	Not applicable
Sysreqnotmet.ico	Not applicable	143,990	25-Jun-2019	23:20	Not applicable
Warn.ico	Not applicable	199,341	25-Jun-2019	23:20	Not applicable

How to obtain help and support for this update

Help for installing updates: Windows Update FAQ
Protect yourself online and at home: Windows Security support
Local support according to your country: International Support