Visual Studio 2010 Tools For Office Runtime End Of Life Jun 2026

Since April 2021, Microsoft has ceased providing security updates, non-security hotfixes, free support options, or paid assisted support for this runtime version.

April 14, 2026

The Visual Studio 2010 Tools for Office Runtime is not just "old"—it is unholy ground . It runs without support, without security updates, and with diminishing compatibility. If you are still shipping this runtime with your application, you are shipping technical debt that will come due on the next Windows update. visual studio 2010 tools for office runtime end of life

The modern Office ecosystem has moved on. The VSTO 2010 runtime was not designed for the "Click-to-Run" architecture of modern Microsoft 365. Users trying to run old VSTO 2010 solutions on new builds of Outlook, Excel, or Word are experiencing random crashes, load failures, and disabled add-ins. Since April 2021, Microsoft has ceased providing security