Microsoft provides the latest redistributable package (v10.0.60910 or newer) which includes the necessary extensions for both 32-bit and 64-bit environments.

Before installing the , ensure your machine meets the following technical requirements: Minimum Requirement Operating System Windows 7 SP1, 8.1, 10, 11, or Windows Server 2012–2022 .NET Framework

The runtime serves as a communication layer between Microsoft Office and the . It includes: Microsofthttps://www.microsoft.com

The runtime is often installed automatically when you install Office or Visual Studio . If a 64-bit version of Office is detected during setup, the 64-bit runtime is typically added by default. Why Is It Required?

Even on 64-bit Windows, you must use the 32-bit runtime if your Office suite is 32-bit.

Download Visual Studio 2010 Tools for Office Runtime from Official Microsoft Download Center

Download the vstor_redist.exe from the Microsoft Download Center.

Requires the 64-bit runtime to automate and extend 64-bit Office applications.

.NET 3.5, 4, 4.5, or later (Required before VSTO installation) Microsoft Office 2013, 2016, 2019, 2021, or Office 365 File Size Approximately 39.7 MB 32-Bit vs. 64-Bit Compatibility

Download Visual Studio 2010 Tools for Office Runtime from Official Microsoft Download Center