The (often abbreviated as VSTO 2010 Runtime ) is a software component developed by Microsoft. It acts as an execution environment and a set of libraries that allow managed code (C#, VB.NET) to run inside Microsoft Office applications.
Supports Windows 7 SP1 through Windows 11, and various Windows Server editions (2012–2022). microsoft visual studio 2010 tools for office runtime -x64-
Without this runtime, an Office add-in built with Visual Studio 2010 would be nothing more than a collection of DLLs. The runtime provides: The (often abbreviated as VSTO 2010 Runtime )
A set of unmanaged DLLs that Office applications use to load the runtime and your specific solution. Without this runtime, an Office add-in built with
In the modern ecosystem of software development, it is easy to overlook components that were once cornerstones of enterprise productivity. One such component is the . While its name suggests a niche tool for developers using a decade-old IDE, this runtime remains a critical dependency for thousands of businesses worldwide. If you have ever encountered a prompt asking for this specific x64 package while installing an Excel add-in, a Word template automation script, or a legacy ERP integration tool, you understand the confusion it can cause.
– Open Control Panel → Programs and Features. Look for “Microsoft Visual Studio 2010 Tools for Office Runtime”. If you see it and it works, skip reinstallation.