Microsoft Visual Studio 2010 Tools For Office Runtime -x64- ((full)) Jun 2026

The VSTO 2010 Runtime has known security vulnerabilities (e.g., CVE-2014-1756, CVE-2017-8661). Before deploying it in a corporate environment:

Still requires the x86 (32-bit) runtime.

Supports Windows 7 SP1 through Windows 11, and various Windows Server editions (2012–2022). microsoft visual studio 2010 tools for office runtime -x64-

Microsoft Visual Studio 2010 Tools for Office (VSTO) Runtime

While the year 2010 may seem like ancient history in tech terms, this specific runtime remains a critical dependency for countless business-critical applications. If you are a system administrator troubleshooting an installation error, a developer maintaining a legacy codebase, or simply a user wondering why a specific program won't launch, understanding this runtime is essential. The VSTO 2010 Runtime has known security vulnerabilities (e

The (64-bit) designation is vital for compatibility. Your runtime version must match the "bitness" of your installed Office version, not necessarily your Windows OS. 64-bit Office on 64-bit Windows: Requires the x64 runtime.

A set of unmanaged DLLs that Office applications use to load the runtime and your specific solution. Microsoft Visual Studio 2010 Tools for Office (VSTO)

Here is the proper information, including the official download link and correct installation context.

You must have .NET Framework 3.5, 4.0, 4.5, or newer installed before the runtime.

This article provides an exhaustive look at what the Visual Studio 2010 Tools for Office Runtime (VSTO Runtime) is, why the x64 version matters, how it differs from its x86 counterpart, common scenarios that require it, and step-by-step guidance for deployment and troubleshooting.