This update installs the Visual Studio 2010 Tools for Office Runtime. This is required to run Microsoft Office-based solutions that are built by using Microsoft Visual Studio 2010, Visual Studio 2012, and Visual Studio 2013.

This update resolves the following issues:

  • For Visual Studio Tools for Office add-ins that use the Windows Presentation Foundation (WPF), customers who use touch-enabled devices experience a 15-20 second delay when they close Office applications.

  • For developers who use SHA 256 code-signing certificates, the installation Trust Prompt would incorrectly display “Unknown Publisher” even when the publisher is fully trusted.

Note The update will automatically configure VSTO to use the same language as your copy of Windows. If you need an additional language pack (For example, if your copy of Windows uses more than one language setting, or if you switch from one language setting to another after you install the VSTO runtime), you can find the language packs here.


Windows Update

This update is available from Windows Update.

Download information

The following file is available for download from the Microsoft Download Center:
Download Download the package now.

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 How to obtain Microsoft support files from online services 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.


To apply this hotfix, you must have Microsoft Visual Studio 2010 installed.

Restart requirement

You do not have to restart the computer after you install the hotfix if the affected files are not being used at the time of installation. We recommend that you close all Visual Studio 2010-related components before you install the hotfix.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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