diff --git a/windows/deployment/do/delivery-optimization-test.md b/windows/deployment/do/delivery-optimization-test.md index 8f6386d9bf..313d8afd21 100644 --- a/windows/deployment/do/delivery-optimization-test.md +++ b/windows/deployment/do/delivery-optimization-test.md @@ -21,17 +21,23 @@ ms.date: 11/08/2022 ## Overview -Delivery Optimization is a powerful and useful tool to help enterprises manage bandwidth usage for downloading Microsoft content. It's a solution designed to be used in large-scale environments with large numbers of devices, various content sizes, etc. Delivery Optimization is native to Win10+ and provides default configuration to get the most out of the typical customer environment. It's used to deliver many different types of content, so Microsoft customers enjoy the best possible download experience for their environment. There are three components to Delivery Optimization, 1) HTTP downloader, 2) Peer-to-peer (P2P) cloud technology, and 3) Microsoft Connected Cache. One of the most powerful advantages of using Delivery Optimization is the ability to fine-tune settings that empower users to dial in Microsoft content delivery to meet the needs of specific environments. +Delivery Optimization is a powerful and useful tool to help enterprises manage bandwidth usage for downloading Microsoft content. It's a solution designed to be used in large-scale environments with large numbers of devices, various content sizes, etc. Delivery Optimization is native to currently supported versions of Windows and provides default configuration to get the most out of the typical customer environment. Delivery Optimization is used to deliver many different types of content, so Microsoft customers enjoy the best possible download experience for their environment. There are three components to Delivery Optimization: + +1. HTTP downloader. +1. Peer-to-peer (P2P) cloud technology. +1. Microsoft Connected Cache. + +One of the most powerful advantages of using Delivery Optimization is the ability to fine-tune settings that empower users to dial in Microsoft content delivery to meet the needs of specific environments. ## Monitoring The Results -Since Delivery Optimization is on by default, you'll be able to monitor the value either through the Windows Settings for 'Delivery Optimization', using Delivery Optimization PowerShell [cmdlets.](waas-delivery-optimization-setup.md), and/or via the [Windows Update for Business Report.](../update/wufb-reports-workbook.md) experience in Azure. +Since Delivery Optimization is on by default, you're able to monitor the value either through the Windows Settings for 'Delivery Optimization' using Delivery Optimization PowerShell [cmdlets.](waas-delivery-optimization-setup.md), and/or via the [Windows Update for Business Report](../update/wufb-reports-workbook.md) experience in Azure. In the case where Delivery Optimization isn't working in your environment, it's important to investigate to get to the root of the problem. We recommend a test environment be created to easily evaluate typical devices to ensure Delivery Optimization is working properly. For starters, 'Scenario 1: Basic Setup' should be created to test the use of Delivery Optimization between two machines. This scenario is designed to eliminate any noise in the environment to ensure there's nothing preventing Delivery Optimization from working on the devices. Once you have a baseline, you can expand the test environment for more sophisticated tests. ## Expectations and Goals -The focus of the testing scenarios in this article is primarily centered on demonstrating the Delivery Optimization policies centered around the successful downloading of bytes using P2P. More specifically, the goal will be to show peer to peer is working as expected, using the following criteria: +The focus of the testing scenarios in this article is primarily centered on demonstrating the Delivery Optimization policies centered around the successful downloading of bytes using P2P. More specifically, the goal is to show peer to peer is working as expected, using the following criteria: * Peers can find each other (for example on the same LAN / subnet / Group - matching your 'Download Mode' policy). * Files are downloading in the expected 'Download Mode' policy setting (validates connectivity to DO cloud, HTTP, and local configs). @@ -39,7 +45,7 @@ The focus of the testing scenarios in this article is primarily centered on demo Several elements that influence overall peering, using Delivery Optimization. The most common, impactful environment factors should be considered. -* **The number of files in the cache and** **the** **number of devices have a big effect on overall peering.** There's a set number of files available for peering at a time, from each client, so the peering device may not be serving a particular file. +* **The number of files in the cache and** **the** **number of devices have a big effect on overall peering.** There's a set number of files available for peering at a time, from each client, so the peering device might not be serving a particular file. * **File size** **and** **internet connection** **reliability matter.** There's a Delivery Optimization setting to determine the minimum file size to use P2P. In addition, an internet connection must be open and reliable enough to let the Delivery Optimization client make cloud service API calls and download metadata files before starting a file download. * **Delivery Optimization Policies can play a role.** In general, it's important to familiarize yourself with the Delivery Optimization settings and defaults [Delivery Optimization reference - Windows Deployment | Microsoft Docs.](waas-delivery-optimization-reference.md). @@ -47,16 +53,16 @@ Several elements that influence overall peering, using Delivery Optimization. Th * Delivery Optimization's hybrid approach to downloading from multiple sources (HTTP and peer) in parallel is especially critical for large-scale environments, constantly assessing the optimal source from which to deliver the content. In conjunction, the distribution of content cache, across participating devices, contributes to Delivery Optimization's ability to find bandwidth savings as more peers become available. -* At the point a download is initiated, the DO client starts downloading from the HTTP source and discovering peers simultaneously. With a smaller file, most of the bytes could be downloaded from an HTTP source before connecting to a peer, even though peers are available. With a larger file and quality LAN peers, it might reduce the HTTP request rate to near zero, but only after making those initial requests from HTTP. +* At the point a download is initiated, the Delivery Optimization client starts downloading from the HTTP source and discovering peers simultaneously. With a smaller file, most of the bytes could be downloaded from an HTTP source before connecting to a peer, even though peers are available. With a larger file and quality LAN peers, it might reduce the HTTP request rate to near zero, but only after making those initial requests from HTTP. -* In the next section, you'll see how the two testing scenarios produce differing results in the number of bytes coming from HTTP vs. peers, which shows Delivery Optimization continuously evaluating the optimal location from which to download the content. +* In the next section, you'll see how the two testing scenarios produce differing results in the number of bytes coming from HTTP vs. peers. These scenarios show Delivery Optimization continuously evaluating the optimal location from which to download the content. ## Test Scenarios ### Scenario 1: Basic Setup **Goal:** -Demonstrate how Delivery Optimization peer-to-peer technology works using two machines in a controlled test environment +Demonstrate how Delivery Optimization peer-to-peer technology works using two machines in a controlled test environment. **Expected Results:** Machine 1 will download zero bytes from peers and Machine 2 will download 50-99% from peers. @@ -72,7 +78,7 @@ Machine 1 will download zero bytes from peers and Machine 2 will download 50-99% |Disk size | 127 GB | |Network | Connected to same network, one that is representative of the corporate network. | |Pause Windows Updates | This controls the test environment so no other content is made available during the test, and potentially altering the outcome of the test. If there are problems and no peering happens, use 'Get-DeliveryOptimizationStatus' on the first machine to return a real-time list of the connected peers. | -|Ensure all Store apps are up to date | This will help prevent any new, unexpected updates to download during testing. | +|Ensure all Store apps are up to date | This helps prevent any new, unexpected updates to download during testing. | |Delivery Optimization 'Download Mode' Policy | 2 (Group)(set on each machine) | |Delivery Optimization 'GroupID' Policy | Set the *same* 'GUID' on each test machine. A GUID is a required value, which can be generated using PowerShell, '[[guid]::NewGuid().](https://devblogs.microsoft.com/scripting/powertip-create-a-new-guid-by-using-powershell/)'. | |**Required on Windows 11 devices only** set Delivery Optimization 'Restrict Peer Selection' policy | 0-NAT (set on each machine). The default behavior in Windows 11 is set to '2-Local Peer Discovery'. For testing purposes, this needs to be scoped to the NAT. | @@ -149,7 +155,7 @@ The following set of instructions will be used for each machine: **Observations** * The first download in the group of devices shows all bytes coming from HTTP, 'BytesFromHttp'. -* Download is in the 'Foreground' because the Store app is doing the download and in the foreground on the device because it is initiated by the user in the Store app. +* Download is in the 'Foreground' because the Store app is doing the download and in the foreground on the device because it's initiated by the user in the Store app. * No peers are found. *Wait 5 minutes*. @@ -185,7 +191,7 @@ The following set of instructions will be used for each machine: ## Peer sourcing observations for all machines in the test group -The distributed nature of the Delivery Optimization technology is obvious when you rerun the 'Get-DeliveryOptimizationStatus' cmdlet on each of the test machines. For each, there's a new value populated for the 'BytesToLanPeers' field. This demonstrates that as more peers become available, the requests to download bytes are distributed across the peering group and act as the source for the peering content. Each peer plays a role in servicing the other. +The distributed nature of the Delivery Optimization technology is obvious when you rerun the 'Get-DeliveryOptimizationStatus' cmdlet on each of the test machines. For each, there's a new value populated for the 'BytesToLanPeers' field. This test demonstrates that as more peers become available, the requests to download bytes are distributed across the peering group and act as the source for the peering content. Each peer plays a role in servicing the other. **Output:** Machine 1 @@ -207,8 +213,8 @@ The distributed nature of the Delivery Optimization technology is obvious when y ## Conclusion -Using Delivery Optimization can help make a big impact in customer environments to optimize bandwidth. The peer-to-peer technology offers many configurations designed to be flexible for any organization. Delivery Optimization uses a distributed cache across different sources to ensure the most optimal download experience, while limiting the resources used on each device. +Using Delivery Optimization can help make a significant impact in customer environments to optimize bandwidth. The peer-to-peer technology offers many configurations designed to be flexible for any organization. Delivery Optimization uses a distributed cache across different sources to ensure the most optimal download experience, while limiting the resources used on each device. The testing scenarios found in this document help to show a controlled test environment, helping to prevent updates from interrupting the peering results. The other, a more real-world case, demonstrates how content available across peers will be used as the source of the content. -If there are issues found while testing, the Delivery Optimization PowerShell [cmdlets.](waas-delivery-optimization-setup.md) can be a helpful tool to help explain what is happening in the environment. +If there are issues found while testing, the Delivery Optimization PowerShell [cmdlets](waas-delivery-optimization-setup.md) can be a helpful tool to help explain what is happening in the environment. diff --git a/windows/deployment/planning/compatibility-fixes-for-windows-8-windows-7-and-windows-vista.md b/windows/deployment/planning/compatibility-fixes-for-windows-8-windows-7-and-windows-vista.md index f105bf7efb..e37a77e25a 100644 --- a/windows/deployment/planning/compatibility-fixes-for-windows-8-windows-7-and-windows-vista.md +++ b/windows/deployment/planning/compatibility-fixes-for-windows-8-windows-7-and-windows-vista.md @@ -1,6 +1,6 @@ --- title: Compatibility Fixes for Windows 10, Windows 8, Windows 7, & Windows Vista -description: Find compatibility fixes for all Windows operating systems that have been released from Windows Vista through Windows 10. +description: Find released compatibility fixes for all Windows operating systems from Windows Vista through Windows 10. manager: aaroncz ms.author: frankroj ms.service: windows-client @@ -14,12 +14,12 @@ ms.subservice: itpro-deploy **Applies to** -- Windows 10 -- Windows 8.1 -- Windows 8 -- Windows 7 -- Windows Server 2012 -- Windows Server 2008 R2 +- Windows 10 +- Windows 8.1 +- Windows 8 +- Windows 7 +- Windows Server 2012 +- Windows Server 2008 R2 You can fix some compatibility issues that are due to the changes made between Windows operating system versions. These issues can include User Account Control (UAC) restrictions. @@ -28,131 +28,128 @@ You can fix some compatibility issues that are due to the changes made between W If you start the Compatibility Administrator as an Administrator (with elevated privileges), all repaired applications can run successfully; however, virtualization and redirection might not occur as expected. To verify that a compatibility fix addresses an issue, you must test the repaired application by running it under the destination user account. - - ## Compatibility Fixes - -The following table lists the known compatibility fixes for all Windows operating systems that have been released from Windows Vista through Windows 10. The fixes are listed in alphabetical order. +The following table lists the known released compatibility fixes for all Windows operating systems from Windows Vista through Windows 10. The fixes are listed in alphabetical order. |Fix|Fix Description| |--- |--- | -|8And16BitAggregateBlts|Applications that are mitigated by 8/16-bit mitigation can exhibit performance issues. This layer aggregates all the blt operations and improves performance.| -|8And16BitDXMaxWinMode|Applications that use DX8/9 and are mitigated by the 8/16-bit mitigation are run in a maximized windowed mode. This layer mitigates applications that exhibit graphical corruption in full screen mode.| +|8And16BitAggregateBlts|8/16-bit mitigation can cause performance issues in applications. This layer aggregates all the blt operations and improves performance.| +|8And16BitDXMaxWinMode|The 8/16-bit mitigation runs applications that use DX8/9 in a maximized windowed mode. This layer mitigates applications that exhibit graphical corruption in full screen mode.| |8And16BitGDIRedraw|This fix repairs applications that use GDI and that work in 8-bit color mode. The application is forced to repaint its window on RealizePalette.| |AccelGdipFlush|This fix increases the speed of GdipFlush, which has perf issues in DWM.| |AoaMp4Converter|This fix resolves a display issue for the AoA Mp4 Converter.| -|BIOSRead|This problem is indicated when an application cannot access the **Device\PhysicalMemory** object beyond the kernel-mode drivers, on any of the Windows Server® 2003 operating systems.
The fix enables OEM executable (.exe) files to use the GetSystemFirmwareTable function instead of the NtOpenSection function when the BIOS is queried for the **\Device\Physical** memory information..| +|BIOSRead|This problem is indicated when an application can't access the **Device\PhysicalMemory** object beyond the kernel-mode drivers, on any of the Windows Server® 2003 operating systems.
The fix enables OEM executable (.exe) files to use the GetSystemFirmwareTable function instead of the NtOpenSection function when the BIOS is queried for the **\Device\Physical** memory information.| |BlockRunasInteractiveUser|This problem occurs when **InstallShield** creates installers and uninstallers that fail to complete and that generate error messages or warnings.
The fix blocks **InstallShield** from setting the value of RunAs registry keys to InteractiveUser Because InteractiveUser no longer has Administrator rights.
The fix intercepts the **SHGetFolder**path request to the common **appdata** file path and returns the Windows® XP-style file path instead of the Windows Vista-style file path.| +|ChangeFolderPathToXPStyle|This fix is required when an application can't return shell folder paths when it uses the **SHGetFolder** API.
The fix intercepts the **SHGetFolder**path request to the common **appdata** file path and returns the Windows® XP-style file path instead of the Windows Vista-style file path.| |ClearLastErrorStatusonIntializeCriticalSection|This fix is indicated when an application fails to start.
The fix modifies the InitializeCriticalSection function call so that it checks the NTSTATUS error code, and then sets the last error to ERROR_SUCCESS.| |CopyHKCUSettingsFromOtherUsers|This problem occurs when an application's installer must run in elevated mode and depends on the HKCU settings that are provided for other users.
The fix scans the existing user profiles and tries to copy the specified keys into the HKEY_CURRENT_USER registry area.
You can control this fix further by entering the relevant registry keys as parameters that are separated by the ^ Symbol; for example: Software\MyCompany\Key1^Software\MyCompany\Key2.
The fix corrects the brush style hatch value, which is passed to the CreateBrushIndirect() function and enables the information to be correctly interpreted.| -|CorrectFilePaths|The problem is indicated when an application tries to write files to the hard disk and is denied access or receives a file not found or path not found error message.
The fixmodifies the file path names to point to a new location on the hard disk.
The fix corrects the file paths that are used by the uninstallation process of an application.
The fixintercepts the ShellExecute(Ex) calls, and then inspects the HWND value. If the value is invalid, this fix enables the call to use the currently active HWND value.
The fix corrects the brush style hatch value, which is passed to the CreateBrushIndirect() function and enables the information to be correctly interpreted.| +|CorrectFilePaths|This problem occurs when:
The fix modifies the file path names to point to a new location on the hard disk.
The fix corrects the file paths that are used by the uninstallation process of an application.
The fix intercepts the ShellExecute(Ex) calls, and then inspects the HWND value. If the value is invalid, this fix enables the call to use the currently active HWND value.
You can control this fix further by typing the following command at the command prompt:
`DLL_Name;Flag_Type;Hexidecimal_Value`
Where the DLL_Name is the name of the specific DLL, including the file extension. Flag_Type is KERNEL, USER, or PROCESS, and a Hexidecimal_Value, starting with 0x and up to 64 bits long.
The fix intercepts the CreateService function calls and removes the deprecated dependency service from the lpDependencies parameter.
You can control this fix further by typing the following command at the command prompt:
`Deprecated_Service\App_Service/Deprecated_Service2 \App_Service2`
Where Deprecated_Service is the name of the service that has been deprecated and App_Service is the name of the specific application service that is to be modified; for example, NtLmSsp\WMI.
The fix modifies the DXDIAGN GetProp function call to return the correct DirectX version.
You can control this fix further by typing the following command at the command prompt:
`MAJORVERSION.MINORVERSION.LETTER`
For example, 9.0.c.| -|DetectorDWM8And16Bit|This fix offers mitigation for applications that work in 8/16-bit display color mode because these legacy color modes are not supported in Windows 8 .| -|Disable8And16BitD3D|This fix improves performance of 8/16-bit color applications that render using D3D and do not mix direct draw.| +|DeprecatedServiceShim|The problem is indicated when an application tries to install a service that has a dependency on a deprecated service. An error message displays.
The fix intercepts the CreateService function calls and removes the deprecated dependency service from the lpDependencies parameter.
You can control this fix further by typing the following command at the command prompt:
`Deprecated_Service\App_Service/Deprecated_Service2 \App_Service2` where:
The fix modifies the DXDIAGN GetProp function call to return the correct DirectX version.
You can control this fix further by typing the following command at the command prompt:
`MAJORVERSION.MINORVERSION.LETTER`
For example, 9.0.c.| +|DetectorDWM8And16Bit|This fix offers mitigation for applications that work in 8/16-bit display color mode because these legacy color modes aren't supported in Windows 8 .| +|Disable8And16BitD3D|This fix improves performance of 8/16-bit color applications that render using D3D and don't mix direct draw.| |Disable8And16BitModes|This fix disables 8/16-bit color mitigation and enumeration of 8/16-bit color modes.| -|DisableDWM|The problem occurs when some objects are not drawn or object artifacts remain on the screen in an application.
The fix temporarily disables the Windows Aero menu theme functionality for unsupported applications.
The fix disables the fade animations functionality for unsupported applications.| -|DisableThemeMenus|The problem is indicated by an application that behaves unpredictably when it tries to detect and use the correct Windows settings.
The fix temporarily disables the Windows Aero menu theme functionality for unsupported applications.| -|DisableWindowsDefender|The fix disables Windows Defender for security applications that do not work with Windows Defender.| -|DWM8And16BitMitigation|The fix offers mitigation for applications that work in 8/16-bit display color mode because these legacy color modes are not supported in Windows 8.| +|DisableDWM|The problem occurs when some objects aren't drawn or object artifacts remain on the screen in an application.
The fix temporarily disables the Windows Aero menu theme functionality for unsupported applications.
The fix disables the fade animations functionality for unsupported applications.| +|DisableThemeMenus|The problem occurs when an application behaves unpredictably when it tries to detect and use the correct Windows settings.
The fix temporarily disables the Windows Aero menu theme functionality for unsupported applications.| +|DisableWindowsDefender|The fix disables Windows Defender for security applications that don't work with Windows Defender.| +|DWM8And16BitMitigation|The fix offers mitigation for applications that work in 8/16-bit display color mode because these legacy color modes aren't supported in Windows 8.| |DXGICompat|The fix allows application-specific compatibility instructions to be passed to the DirectX engine.| |DXMaximizedWindowedMode|Applications that use DX8/9 are run in a maximized windowed mode. This is required for applications that use GDI/DirectDraw in addition to Direct3D.| -|ElevateCreateProcess|The problem is indicated when installations, de-installations, or updates fail because the host process calls the CreateProcess function and it returns an ERROR_ELEVATION_REQUIRED error message.
The fixhandles the error code and attempts to recall the CreateProcess function together with requested elevation. If the fixed application already has a UAC manifest, the error code will be returned unchanged.
The fix handles the error code and attempts to recall the CreateProcess function together with requested elevation. If the fixed application already has a UAC manifest, the error code is returned unchanged.
The fix exchanges the PathIsUNC function to return a value of True for UNC paths in Windows.| -|EmulateGetDiskFreeSpace|The problem is indicated when an application fails to install or to run, and it generates an error message that there is not enough free disk space to install or use the application, even though there is enough free disk space to meet the application requirements.
The fix determines the amount of free space, so that if the amount of free space is larger than 2 GB, the compatibility fix returns a value of 2 GB, but if the amount of free space is smaller than 2 GB, the compatibility fix returns the actual-free space amount.
The fix determines the amount of free space. If the amount of free space is larger than 2 GB, the compatibility fix returns a value of 2 GB. However, if the amount of free space is smaller than 2 GB, the compatibility fix returns the actual-free space amount.
The fix forces applications that use the CompareStringW/LCMapString sorting table to use an older version of the table.
The fix enables the computer to restart and finish the installation process by verifying and enabling that the SeShutdownPrivilege service privilege exists.
The fix counteracts the application's tries to obtain the shell desktop folder by invoking the AddRef() method on the Desktop folder, which is returned by the SHGetDesktopFolder function.| +|EnableRestarts|The problem is indicated when an application and computer appear to hang because processes can't end to allow the computer to complete its restart processes.
The fix enables the computer to restart and finish the installation process by verifying and enabling that the SeShutdownPrivilege service privilege exists.
The fix invokes the AddRef() method on the Desktop folder, which the SHGetDesktopFolder function returns, to counteract the problem.| |FailObsoleteShellAPIs|The problem occurs when an application fails because it generated deprecated API calls.
The fix either fully implements the obsolete functions or implements the obsolete functions with stubs that fail.
This fix fails calls to RemoveDirectory() when called with a path matching the one specified in the shim command line. Only a single path is supported. The path can contain environment variables, but must be an exact path - no partial paths are supported.
The fixcan resolves an issue where an application expects RemoveDirectory() to delete a folder immediately even though a handle is open to it.| -|FakeLunaTheme|The problem occurs when a theme application does not properly display: the colors are washed out or the user interface is not detailed.
The fix intercepts the GetCurrentThemeName API and returns the value for the Windows XP default theme (Luna).
The fixenables the WriteFile function to call to the FlushFileBuffers APIs, which flush the file cache onto the hard disk.| +|FailRemoveDirectory|The problem occurs when an application uninstall process doesn't remove all of the application files and folders.
This fix fails calls to RemoveDirectory() when called with a path matching the one specified in the shim command line. Only a single path is supported. The path can contain environment variables, but must be an exact path - no partial paths are supported.
The fix resolves an issue where an application expects RemoveDirectory() to delete a folder immediately even though a handle is open to it.| +|FakeLunaTheme|The problem occurs when a theme application doesn't properly display: the colors are washed out or the user interface isn't detailed.
The fix intercepts the GetCurrentThemeName API and returns the value for the Windows XP default theme (Luna).
The fix enables the WriteFile function to call to the FlushFileBuffers APIs, which flush the file cache onto the hard disk.| |FontMigration|The fix replaces an application-requested font with a better font selection, to avoid text truncation.| |ForceAdminAccess|The problem occurs when an application fails to function during an explicit administrator check.
The fix allows the user to temporarily imitate being a part of the Administrators group by returning a value of True during the administrator check.
The fix exchanges GetDriveType() so that only the root information appears for the file path. This is required when an application passes an incomplete or badly formed file path when it tries to retrieve the drive type on which the file path exists.| -|GlobalMemoryStatusLie|The problem is indicated by a Computer memory full error message that displays when you start an application.
The fix modifies the memory status structure, so that it reports a swap file that is 400 MB, regardless of the true swap file size.| -|HandleBadPtr|The problem is indicated by an access violation error message that displays because an API is performing pointer validation before it uses a parameter.
The fix supports using lpBuffer validation from the InternetSetOptionA and InternetSetOptionW functions to perform the more parameter validation.| -|HandleMarkedContentNotIndexed|The problem is indicated by an application that fails when it changes an attribute on a file or directory.
The fix intercepts any API calls that return file attributes and directories that are invoked from the %TEMP% directory, and resets the FILE_ATTRIBUTE_NOT_CONTENT_INDEXED attribute to its original state.| +|GetDriveTypeWHook|The application presents unusual behavior during installation; for example, the setup program states that it can't install to a user-specified location.
The fix exchanges GetDriveType() so that only the root information appears for the file path. This is required when an application passes an incomplete or badly formed file path when it tries to retrieve the drive type on which the file path exists.| +|GlobalMemoryStatusLie|The problem occurs when a Computer memory full error message that displays when you start an application.
The fix modifies the memory status structure, so that it reports a swap file that is 400 MB, regardless of the true swap file size.| +|HandleBadPtr|The problem occurs when an access violation error message that displays because an API is performing pointer validation before it uses a parameter.
The fix supports using lpBuffer validation from the InternetSetOptionA and InternetSetOptionW functions to perform the more parameter validation.| +|HandleMarkedContentNotIndexed|The problem occurs when an application that fails when it changes an attribute on a file or directory.
The fix intercepts any API calls that return file attributes and directories that are invoked from the %TEMP% directory. The fix then resets the FILE_ATTRIBUTE_NOT_CONTENT_INDEXED attribute to its original state.| |HeapClearAllocation|The problem is indicated when the allocation process shuts down unexpectedly.
The fix uses zeros to clear out the heap allocation for an application.| |IgnoreAltTab|The problem occurs when an application fails to function when special key combinations are used.
The fix intercepts the RegisterRawInputDevices API and prevents the delivery of the WM_INPUT messages. This delivery failure forces the included hooks to be ignored and forces DInput to use Windows-specific hooks.
The fix links the FindNextFileW, FindNextFileA, FindFirstFileExW, FindFirstFileExA, FindFirstFileW, and FindFirstFileA APIs to prevent them from returning directory junctions.
The fix enables the application to ignore specified exceptions. By default, this fix ignores privileged-mode exceptions; however, it can be configured to ignore any exception.
You can control this fix further by typing the following command at the command prompt:
`Exception1;Exception2`
Where Exception1 and Exception2 are specific exceptions to be ignored. For example: ACCESS_VIOLATION_READ:1;ACCESS_VIOLATION_WRITE:1.
**Important:** You should use this compatibility fix only if you are certain that it is acceptable to ignore the exception. You might experience more compatibility issues if you choose to incorrectly ignore an exception.
Before floating point SSE2 support in the C runtime library, the rounding control request was being ignored which would use round to nearest option by default. This shim ignores the rounding control request to support applications relying on old behavior.| +|IgnoreChromeSandbox|The fix allows Google Chrome to run on systems where ntdll is loaded above 4 GB.| +|IgnoreDirectoryJunction|The problem occurs when a read or access violation error message that displays when an application tries to find or open files.
The fix links the FindNextFileW, FindNextFileA, FindFirstFileExW, FindFirstFileExA, FindFirstFileW, and FindFirstFileA APIs to prevent them from returning directory junctions.
The fix enables the application to ignore specified exceptions. By default, this fix ignores privileged-mode exceptions; however, it can be configured to ignore any exception.
You can control this fix further by typing the following command at the command prompt:
`Exception1;Exception2`
Where Exception1 and Exception2 are specific exceptions to be ignored. For example: ACCESS_VIOLATION_READ:1;ACCESS_VIOLATION_WRITE:1.
**Important:** You should use this compatibility fix only if you're certain that it's acceptable to ignore the exception. You might experience more compatibility issues if you choose to incorrectly ignore an exception.
Before the C runtime library supported floating point SSE2, it ignored the rounding control request and used the round to nearest option by default. This shim ignores the rounding control request to support applications relying on old behavior.| |IgnoreFontQuality|The problem occurs when application text appears to be distorted.
The fix enables color-keyed fonts to properly work with anti-aliasing.| -|IgnoreMessageBox|The problem is indicated by a message box that displays with debugging or extraneous content when the application runs on an unexpected operating system.
The fix intercepts the MessageBox* APIs and inspects them for specific message text. If matching text is found, the application continues without showing the message box.
The fix ignores the registered MSOXMLMF.DLL object, which Microsoft® Office 2007 loads into the operating system anytime that you load an XML file, and then it fails the CoGetClassObject for its CLSID. This compatibility fix will just ignore the registered MSOXMLMF and fail the CoGetClassObject for its CLSID.| +|IgnoreMessageBox|The problem occurs when a message box that displays with debugging or extraneous content when the application runs on an unexpected operating system.
The fix intercepts the MessageBox* APIs and inspects them for specific message text. If matching text is found, the application continues without showing the message box.
The fix ignores the registered MSOXMLMF.DLL object, which Microsoft® Office 2007 loads into the operating system anytime that you load an XML file, and then it fails the CoGetClassObject for its CLSID. This compatibility fix ignores the registered MSOXMLMF and fails the CoGetClassObject for its CLSID.| |IgnoreSetROP2|The fix ignores read-modify-write operations on the desktop to avoid performance issues.| -|InstallComponent|The fix prompts the user to install.Net 3.5 or .NET 2.0 because .NET is not included with Windows 8.| +|InstallComponent|The fix prompts the user to install.Net 3.5 or .NET 2.0 because .NET isn't included with Windows 8.| |LoadLibraryRedirect|The fix forces an application to load system versions of libraries instead of loading redistributable versions that shipped with the application.| |LocalMappedObject|The problem occurs when an application unsuccessfully tries to create an object in the Global namespace.
The fix intercepts the function call to create the object and replaces the word Global with Local.
The fix locates any RunDLL.exe-based uninstallers and forces them to run with different credentials during the application installation. After it applies this fix, the installer will create a shortcut that specifies a matching string to run during the application installation, thereby enabling the uninstallation to occur later.
The fix locates any RunDLL.exe-based uninstallers and forces them to run with different credentials during the application installation. After it applies this fix, the installer will create a shortcut that specifies a matching string to run during the application installationenabling the uninstallation to occur later.
The fix forces the CopyFile APIs to run instead of the MoveFile APIs. CopyFile APIs avoid moving the security descriptor, which enables the application files to get the default descriptor of the destination folder and prevents the security access issue.| -|OpenDirectoryAcl|The problem is indicated by an error message that states that you do not have the appropriate permissions to access the application.
The fix reduces the security privilege levels on a specified set of files and folders.
The fix reduces the security privilege levels on a specified set of files and folders.
The fix handles the failure case by passing a fake process performance data registry key, so that the application perceives that it is the only instance running.
The fix handles the failure case by passing a fake process performance data registry key, so that the application perceives that it's the only instance running.
The fix sets the _PROCESS_HISTORY environment variable so that child processes can look in the parent directory for matching information while searching for application fixes.| -|ProtectedAdminCheck|The problem occurs when an application fails to run because of incorrect Protected Administrator permissions.
The fix addresses the issues that occur when applications use non-standard Administrator checks, thereby generating false positives for user accounts that are being run as Protected Administrators. In this case, the associated SID exists, but it is set as deny-only.| -|RedirectCRTTempFile|The fix intercepts failing CRT calls that try to create a temporary file at the root of the volume, thereby redirecting the calls to a temporary file in the user's temporary directory.| -|RedirectHKCUKeys|The problem occurs when an application cannot be accessed because of User Account Control (UAC) restrictions.
The fix duplicates any newly created HKCU keys to other users' HKCU accounts. This fix is generic for UAC restrictions, whereby the HKCU keys are required, but are unavailable to an application at runtime.| -|RedirectMP3Codec|This problem occurs when you cannot play MP3 files.
The fix intercepts the CoCreateInstance call for the missing filter and then redirects it to a supported version.| -|RedirectShortcut|The problem occurs when an application cannot be accessed by its shortcut, or application shortcuts are not removed during the application uninstallation process.
The fix redirects all of the shortcuts created during the application setup to appear according to a specified path.
Start Menu shortcuts: Appear in the \ProgramData\Microsoft\Windows\Start Menu directory for all users.
Desktop or Quick Launch shortcuts: You must manually place the shortcuts on the individual user's desktop or Quick Launch bar.
This issue occurs because of UAC restrictions: specifically, when an application setup runs by using elevated privileges and stores the shortcuts according to the elevated user's context. In this situation, a restricted user cannot access the shortcuts.
You cannot apply this fix to an .exe file that includes a manifest and provides a run level.| -|RelaunchElevated|The problem occurs when installers, uninstallers, or updaters fail when they are started from a host application.
The fix enables a child .exe file to run with elevated privileges when it is difficult to determine the parent process with either the ElevateCreateProcess fix or by marking the .exe files to RunAsAdmin.
The fix retries the call and requests a more restricted set of rights that include the following:
The fix retries the OpenService() API call and verifies that the user has Administrator rights, is not a Protected Administrator, and by using read-only access. Applications can test for the existence of a service by calling the OpenService() API but some applications ask for all access when making this check. This fix retries the call but only asking for read-only access. The user needs to be an administrator for this to work
The fix addresses the issues that occur when applications use non-standard Administrator checks. This issue can result in false positives for user accounts that are being run as Protected Administrators. In this case, the associated SID exists, but the SID is set as deny-only.| +|RedirectCRTTempFile|The fix intercepts failing CRT calls that try to create a temporary file at the root of the volume. The fix instead redirects the calls to a temporary file in the user's temporary directory.| +|RedirectHKCUKeys|The problem occurs when an application can't be accessed because of User Account Control (UAC) restrictions.
The fix duplicates any newly created HKCU keys to other users' HKCU accounts. This fix is generic for UAC restrictions, whereby the HKCU keys are required, but are unavailable to an application at runtime.| +|RedirectMP3Codec|This problem occurs when you can't play MP3 files.
The fix intercepts the CoCreateInstance call for the missing filter and then redirects it to a supported version.| +|RedirectShortcut|The problem occurs when an application's shortcut can't be accessed, or the application uninstallation process doesn't remove application shortcuts.
The fix redirects all of the shortcuts created during the application setup to appear according to a specified path.
Start Menu shortcuts: Appear in the \ProgramData\Microsoft\Windows\Start Menu directory for all users.
Desktop or Quick Launch shortcuts: You must manually place the shortcuts on the individual user's desktop or Quick Launch bar.
This issue occurs because of UAC restrictions: specifically, when an application setup runs by using elevated privileges and stores the shortcuts according to the elevated user's context. In this situation, a restricted user can't access the shortcuts.
You can't apply this fix to an .exe file that includes a manifest and provides a run level.| +|RelaunchElevated|The problem occurs when installers, uninstallers, or updaters fail when they're started from a host application.
The fix enables a child .exe file to run with elevated privileges when it's difficult to determine the parent process with either the ElevateCreateProcess fix or by marking the .exe files to RunAsAdmin.
The fix retries the call and requests a more restricted set of rights that include the following items:
The fix retries the OpenService() API call and verifies that the user has Administrator rights, isn't a Protected Administrator, and by using read-only access. Applications can test for the existence of a service by calling the OpenService() API but some applications ask for all access when making this check. This fix retries the call but only asking for read-only access. The user needs to be an administrator for this fix to work
The fix enables the application to run by using elevated privileges. The fix is the equivalent of specifying requireAdministrator in an application manifest.
The fix enables the application to run by using the highest available permissions. This is the equivalent of specifying highestAvailable in an application manifest.
The fix enables the application to run by using the privileges that are associated with the creation process, without requiring elevation. This is the equivalent of specifying asInvoker in an application manifest.
The fix enables the application to run by using the highest available permissions. This fix is the equivalent of specifying highestAvailable in an application manifest.
The fix enables the application to run by using the privileges that are associated with the creation process, without requiring elevation. This fix is the equivalent of specifying asInvoker in an application manifest.
At the command prompt, you can supply a list of objects to modify, separating the values by a double backslash (). Or, you can choose not to include any parameters, so that all of the objects are modified.
**Important:** Users cannot log in as Session 0 (Global Session) in Windows Vista and later. Therefore, applications that require access to Session 0 automatically fail.
At the command prompt, you can supply a list of objects to modify, separating the values by a double backslash (). Or, you can choose not to include any parameters, so that all of the objects are modified.
**Important:** Users can't sign in as Session 0 (Global Session) in Windows Vista and later. Therefore, applications that require access to Session 0 automatically fail.
You can control this fix further by typing the following command at the command prompt:`Client;Protocol;App`
Where the Client is the name of the email protocol, Protocol is mailto, and App is the name of the application.
The fixdisables the Wow64 file system that is used by the 64-bit editions of Windows, to prevent 32-bit applications from accessing 64-bit file systems during the application setup.| +|SetupCommitFileQueueIgnoreWow|The problem occurs when a 32-bit setup program fails to install because it requires 64-bit drivers.
The fix disables the Wow64 file system that is used by the 64-bit editions of Windows, to prevent 32-bit applications from accessing 64-bit file systems during the application setup.| |SharePointDesigner2007|The fix resolves an application bug that severely slows the application when it runs in DWM.| -|ShimViaEAT|The problem occurs when an application fails, even after applying acompatibility fix that is known to fix an issue. Applications that use unicows.dll or copy protection often present this issue.
The fixapplies the specified compatibility fixes by modifying the export table and by nullifying the use of module inclusion and exclusion.
The fixintercepts the ShowWindow API call to address the issues that can occur when a web application determines that it is in a child window. This fix calls the real ShowWindow API on the top-level parent window.| -|SierraWirelessHideCDROM|The fix repairs the Sierra Wireless Driver installation, thereby preventing bugcheck.| +|ShimViaEAT|The problem occurs when an application fails, even after applying a compatibility fix that is known to fix an issue. Applications that use unicows.dll or copy protection often present this issue.
The fix applies the specified compatibility fixes by modifying the export table and by nullifying the use of module inclusion and exclusion.
The fix intercepts the ShowWindow API call to address the issues that can occur when a web application determines that it is in a child window. This fix calls the real ShowWindow API on the top-level parent window.| +|SierraWirelessHideCDROM|The fix repairs the Sierra Wireless Driver installation preventing bugcheck.| |Sonique2|The application uses an invalid window style, which breaks in DWM. This fix replaces the window style with a valid value.| -|SpecificInstaller|The problem occurs when an application installation file fails to be picked up by the GenericInstaller function.
The fixflags the application as being an installer file (for example, setup.exe), and then prompts for elevation.
The fixflags the application to exclude it from detection by the GenericInstaller function.
The fix flags the application as being an installer file (for example, setup.exe), and then prompts for elevation.
The fix flags the application to exclude it from detection by the GenericInstaller function.
The fixenables customized Windows messages to pass through to the current process from a lower Desktop integrity level. This fix is the equivalent of calling the RegisterWindowMessage function, followed by the ChangeWindowMessageFilter function in the code.
You can control this fix further by typing the following command at the command prompt:
`MessageString1 MessageString2`
Where MessageString1 and MessageString2 reflect the message strings that can pass.
The fixenables standard Windows messages to pass through to the current process from a lower Desktop integrity level. This fix is the equivalent of calling the ChangeWindowMessageFilter function in the code.
You can control this fix further by typing the following command at the command prompt:
`1055 1056 1069`
Where 1055 reflects the first message ID, 1056 reflects the second message ID, and 1069 reflects the third message ID that can pass.
The fix enables customized Windows messages to pass through to the current process from a lower Desktop integrity level. This fix is the equivalent of calling the RegisterWindowMessage function, followed by the ChangeWindowMessageFilter function in the code.
You can control this fix further by typing the following command at the command prompt:
`MessageString1 MessageString2`
Where MessageString1 and MessageString2 reflect the message strings that can pass.
The fix enables standard Windows messages to pass through to the current process from a lower Desktop integrity level. This fix is the equivalent of calling the ChangeWindowMessageFilter function in the code.
You can control this fix further by typing the following command at the command prompt:
`1055 1056 1069`
Where 1055 reflects the first message ID, 1056 reflects the second message ID, and 1069 reflects the third message ID that can pass.
The fixenables the registry functions to allow for virtualization, redirection, expansion values, version spoofing, the simulation of performance data counters, and so on.
For more detailed information about this application fix, see [Using the VirtualRegistry Fix](/previous-versions/windows/it-pro/windows-7/cc749368(v=ws.10)).| -|VirtualizeDeleteFile|The problem occurs when several error messages display and the application cannot delete files.
The fixmakes the application's DeleteFile function call a virtual call in an effort to remedy the UAC and file virtualization issues that were introduced with Windows Vista. This fix also links other file APIs (for example, GetFileAttributes) to ensure that the virtualization of the file is deleted.
The fixredirects the HKCR write calls (HKLM) to the HKCU hive for a per-user COM registration. This operates much like the VirtualRegistry fix when you use the VirtualizeHKCR parameter; however, VirtualizeHKCRLite provides better performance.
HKCR is a virtual merge of the HKCU\Software\Classes and HKLM\Software\Classes directories. The use of HKCU is preferred if an application is not elevated and is ignored if the application is elevated.
You typically will use this compatibility fix in conjunction with the VirtualizeRegisterTypeLib fix.
For more detailed information about this application fix, see [Using the VirtualizeHKCRLite Fix](/previous-versions/windows/it-pro/windows-7/dd638327(v=ws.10)).|
-|VirtualizeRegisterTypeLib|The fix, when it is used with the VirtualizeHKCRLite fix, ensures that the type library and the COM class registration happen simultaneously. This functions much like the RegistryTypeLib fix when the RegisterTypeLibForUser parameter is used.
The fixenables the application to ignore the format error and continue to function properly.| -|WerDisableReportException|The fix turns off the silent reporting of exceptions to the Windows Error Reporting tool, including those that are reported by Object Linking and Embedding-Database (OLE DB). The fix intercepts the RtlReportException API and returns a STATUS_NOT_SUPPORTED error message.| +|VirtualizeDesktopPainting|This fix improves the performance of several operations on the Desktop DC while using DWM.| +|VirtualRegistry|The problem is indicated when a Component failed to be located error message displays when an application is started.
The fix enables the registry functions to allow for virtualization, redirection, expansion values, version spoofing, the simulation of performance data counters, and so on.
For more detailed information about this application fix, see [Using the VirtualRegistry Fix](/previous-versions/windows/it-pro/windows-7/cc749368(v=ws.10)).| +|VirtualizeDeleteFile|The problem occurs when several error messages display and the application can't delete files.
The fix makes the application's DeleteFile function call a virtual call to remedy the UAC and file virtualization issues that were introduced with Windows Vista. This fix also links other file APIs (for example, GetFileAttributes) to ensure that the virtualization of the file is deleted.
The fix redirects the HKCR write calls (HKLM) to the HKCU hive for a per-user COM registration. This fix operates much like the VirtualRegistry fix when you use the VirtualizeHKCR parameter; however, VirtualizeHKCRLite provides better performance.
HKCR is a virtual merge of the HKCU\Software\Classes and HKLM\Software\Classes directories. The use of HKCU is preferred if an application isn't elevated and is ignored if the application is elevated.
You typically use this compatibility fix with the VirtualizeRegisterTypeLib fix.
For more detailed information about this application fix, see [Using the VirtualizeHKCRLite Fix](/previous-versions/windows/it-pro/windows-7/dd638327(v=ws.10)).|
+|VirtualizeRegisterTypeLib|The fix when used with the VirtualizeHKCRLite fix, ensures that the type library and the COM class registration happen simultaneously. This fix functions much like the RegistryTypeLib fix when the RegisterTypeLibForUser parameter is used.
The fix enables the application to ignore the format error and continue to function properly.| +|WerDisableReportException|The fix turns off the silent reporting of exceptions, including those exceptions reported by Object Linking and Embedding-Database (OLE DB), to the Windows Error Reporting tool. The fix intercepts the RtlReportException API and returns a STATUS_NOT_SUPPORTED error message.| |Win7RTM/Win8RTM|The layer provides the application with Windows 7/Windows 8 compatibility mode.| -|WinxxRTMVersionLie|The problem occurs when an application fails because it does not find the correct version number for the required Windows operating system.
All version lie compatibility fixes address the issue whereby an application fails to function because it is checking for, but not finding, a specific version of the operating system. The version lie fix returns the appropriate operating system version information. For example, the VistaRTMVersionLie returns the Windows Vista version information to the application, regardless of the actual operating system version that is running on the computer.| -|Wing32SystoSys32|The problem is indicated by an error message that states that the WinG library was not properly installed.
The fixdetects whether the WinG32 library exists in the correct directory. If the library is located in the wrong location, this fix copies the information (typically during the runtime of the application) into the %WINDIR% \system32 directory.
**Important:** The application must have Administrator privileges for this fix to work.| +|WinxxRTMVersionLie|The problem occurs when an application fails because it doesn't find the correct version number for the required Windows operating system.
All version lie compatibility fixes address the issue whereby an application fails to function because it's checking for, but not finding, a specific version of the operating system. The version lie fix returns the appropriate operating system version information. For example, the VistaRTMVersionLie returns the Windows Vista version information to the application, regardless of the actual operating system version that is running on the computer.| +|Wing32SystoSys32|The problem occurs when an error message that states that the WinG library wasn't properly installed.
The fix detects whether the WinG32 library exists in the correct directory. If the library is located in the wrong location, this fix copies the information (typically during the runtime of the application) into the %WINDIR% \system32 directory.
**Important:** The application must have Administrator privileges for this fix to work.| |WinSrv08R2RTM|| -|WinXPSP2VersionLie|The problem occurs when an application experiences issues because of a VB runtime DLL.
The fixforces the application to follow these steps:
The fixskips the processes of registering and unregistering WRP-protected COM components when calling the DLLRegisterServer and DLLUnregisterServer functions.
You can control this fix further by typing the following command at the command prompt:
`Component1.dll;Component2.dll`
Where Component1.dll and Component2.dll reflect the components to be skipped.
The fixemulates the successful authentication and modification of file and registry APIs, so that the application can continue.
The fixverifies whether the registry key is WRP-protected. If the key is protected, this fix emulates the deletion process.| +|WinXPSP2VersionLie|The problem occurs when an application experiences issues because of a VB runtime DLL.
The fix forces the application to follow these steps:
The fix skips the processes of registering and unregistering WRP-protected COM components when calling the DLLRegisterServer and DLLUnregisterServer functions.
You can control this fix further by typing the following command at the command prompt:
`Component1.dll;Component2.dll`
Where Component1.dll and Component2.dll reflect the components to be skipped.
The fix emulates the successful authentication and modification of file and registry APIs, so that the application can continue.
The fix verifies whether the registry key is WRP-protected. If the key is protected, this fix emulates the deletion process.| |XPAfxIsValidAddress|The fix emulates the behavior of Windows XP for MFC42!AfxIsValidAddress.| ## Compatibility Modes @@ -161,5 +158,5 @@ The following table lists the known compatibility modes. |Compatibility Mode Name|Description|Included Compatibility Fixes| |--- |--- |--- | -|WinSrv03|Emulates the Windows Server 2003 operating system.|