Absolutely. Microsoft maintains forward compatibility. The VSTO 2010 Runtime can host add-ins for Word 2019, Excel 365, Outlook 2021, etc. However, you must ensure your add-in project references the correct PIA version (e.g., Office 2019 PIAs).
Confirm that you have installed the x64 version on a 64-bit Windows/Office installation. Installing the x86 version on x64 Office will cause errors.
In enterprise environments, you cannot expect users to manually download runtimes. Here is the correct command-line for silent deployment of the :
: Before installation, you must have the .NET Framework 3.5, 4.0, or newer installed on the machine. microsoft visual studio 2010 tools for office runtime -x64-
To expose hidden deployment or loading errors, developers can force the runtime to display detailed alert boxes.
: It supports solutions targeting .NET Framework 3.5, 4.0, and newer versions like 4.8, ensuring long-term utility for legacy systems. Lightweight Deployment
Office apps will aggressively disable add-ins that crash or cause slow startup times. Absolutely
If you are currently setting up or debugging an environment, let me know:
Modernizing old, insecure VBA (Visual Basic for Applications) macros into secure, scalable .NET solutions. System Requirements
Last updated: 2025. This article refers to Microsoft Visual Studio 2010 Tools for Office Runtime version 10.0.60828 for x64 systems. Always download the redistributable directly from Microsoft’s official website or Visual Studio subscriber downloads. However, you must ensure your add-in project references
.NET Framework 3.5, 4, 4.5, or later must be installed prior to the runtime.
Windows 11, Windows 10, Windows Server 2016/2019/2022 (64-bit versions)
When we append to the runtime name, we are referring to the 64-bit native loader and shim. Here is the non-negotiable rule: