The 64-bit version of the VSTO runtime is required specifically when you are using a on a 64-bit Windows operating system. It acts as the bridge (communication layer) between your Office applications (like Excel, Word, or Outlook) and the managed code in the .NET Framework solutions. System Requirements & Prerequisites
Alternatively, for automated deployments, you can use the with the command: winget install -e --id Microsoft.VSTOR . Why You Need the 64-bit Version
The official and safest way to get the runtime is directly from the . File Name: vstor_redist.exe Version: 10.0.60917 (latest as of early 2024)
The is a critical component for anyone running Office-based solutions created with Visual Studio. If you are looking to download the 64-bit version, it is essential to ensure your system matches the architecture and prerequisites to avoid installation errors. Where to Download the 64-bit Runtime
This single installer is designed to detect your operating system's bitness; if you are on a 64-bit Windows machine, it will install the 64-bit runtime.