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The x64 runtime also ensures that all registry access is redirected to the , preventing conflicts with 32-bit add-ins that might run under WOW64.

The Microsoft Visual Studio 2010 Tools for Office Runtime consists of the following components:

Microsoft Visual Studio 2010 Tools for Office Runtime - x64 is a software component developed by Microsoft Corporation. It is a runtime environment that enables applications developed using Visual Studio 2010 to interact with Microsoft Office applications, such as Excel, Word, and PowerPoint.