The bitness of the VSTO Runtime must match the bitness of your Microsoft Office installation , not necessarily your Windows operating system Microsoft Learn 64-bit Office: Requires the VSTO Runtime Microsoft Learn 32-bit Office: Requires the VSTO Runtime Microsoft Learn Deployment: For automated deployment, the vstor_redist.exe
If you see it listed, your system is ready to run 64-bit Office add-ins. Troubleshooting Common Issues microsoft visual studio 2010 tools for office runtime -x64-
Open your VSTO project properties → tab → Platform target : The bitness of the VSTO Runtime must match
Visual Studio Tools for Office runtime overview - Microsoft Learn microsoft visual studio 2010 tools for office runtime -x64-
The is a critical but often overlooked component for running managed code inside 64-bit Office applications. While the name includes "2010," it remains the standard runtime for modern 64-bit Office deployments. Proper installation matching your Office architecture eliminates most VSTO-related runtime errors.
: You can download the redistributable ( vstor_redist.exe ) from the Official Microsoft Download Center .
The bitness of the VSTO Runtime must match the bitness of your Microsoft Office installation , not necessarily your Windows operating system Microsoft Learn 64-bit Office: Requires the VSTO Runtime Microsoft Learn 32-bit Office: Requires the VSTO Runtime Microsoft Learn Deployment: For automated deployment, the vstor_redist.exe
If you see it listed, your system is ready to run 64-bit Office add-ins. Troubleshooting Common Issues
Open your VSTO project properties → tab → Platform target :
Visual Studio Tools for Office runtime overview - Microsoft Learn
The is a critical but often overlooked component for running managed code inside 64-bit Office applications. While the name includes "2010," it remains the standard runtime for modern 64-bit Office deployments. Proper installation matching your Office architecture eliminates most VSTO-related runtime errors.
: You can download the redistributable ( vstor_redist.exe ) from the Official Microsoft Download Center .