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Visual Studio 2010 runs faster when the Windows Automation API 3.0 is installedArticle ID: 981741 - View products that this article applies to. On This PageINTRODUCTIONApplications that use Windows Automation APIs can significantly decrease Microsoft Visual Studio IntelliSense performance if Windows Automation API 3.0 is not installed. For example, the Windows pen and touch services can significantly decrease Visual Studio IntelliSense performance if Windows Automation API 3.0 is not installed. This article describes how to install the Windows Automation API 3.0 update. This update is available as a stand-alone download for 32-bit editions of Windows XP and for Windows Server 2003. This update is not available for 64-bit editions of Windows XP. The Windows Automation API is a component of the platform update for Windows Vista and of the platform update for Windows Server 2008. Windows Automation APIThe Windows Automation API library enables accessibility tools, test automations, and pen services to access a standard user interface across operating system versions.MORE INFORMATIONFor more information about the Windows Automation API, visit the following Microsoft Developer Network (MSDN) Web site:
Overview of Windows Automation API 3.0
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://msdn.microsoft.com/en-us/library/dd561932.aspx)
971644
(http://support.microsoft.com/kb/971644/
)
Description of the Platform Update for Windows Server 2008 and the Platform Update for Windows Vista
976779
(http://support.microsoft.com/kb/976779/
)
Windows Automation API 3.0 release notes
Download informationThe following file is available for download from the Microsoft Download Center:Update for all supported x86-based versions of Windows Server 2003Collapse this image  Update for all supported x64-based versions of Windows Server 2003Collapse this image Update for all supported x86-based versions of Windows Server 2008Collapse this image Update for all supported x64-based versions of Windows Server 2008Collapse this image Update for all supported x86-based versions of Windows VistaCollapse this image Update for all supported x64-based versions of Windows VistaCollapse this image Update for all supported x86-based versions of Windows XPCollapse this image Note Customers who cannot install the update can set the following registry key to prevent the notification from being displayed: [HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\10.0\General] "UIAOverride"=dword:00000001 828930 This is a known issue. If Microsoft releases a software update to resolve this problem, this article will be updated with additional information.
(http://support.microsoft.com/kb/828930/
)
How to integrate software updates into your Windows installation source files
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
(http://support.microsoft.com/kb/119591/
)
How to obtain Microsoft support files from online services
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