Runtime -x64- — Microsoft Visual Studio 2010 Tools For Office
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Microsoft Official Documentation
Backward-compatibility and security
The upgrade path can occasionally clear out old cached pointers inside the global assembly cache (GAC). microsoft visual studio 2010 tools for office runtime -x64-
When loading a custom spreadsheet tool, you may encounter an error stating: "The customization cannot be loaded because the deployment manifest could not be read or because the customization is not trusted."
Before deploying or installing the VSTO 2010 Runtime (x64), ensure your system meets these prerequisites: Requirement Category Specification
This is a generic Windows Installer error that is often seen. The "Fatal error during installation" code can be frustrating to resolve. Solutions include: I can provide targeted to get your Office
A known challenge for this older runtime is that its digital signature certificate is now expired. This can cause the installer to fail with an error indicating that a required certificate is not within its validity period. Microsoft has officially addressed that the code signing certificate for the package has expired. If encountered, it can often be bypassed by:
Office frequently disables custom extensions if they slow down startup speeds by fractions of a second.
Administrators can grab the standalone Visual Studio 2010 Tools for Office Runtime Installer from the official Microsoft Download Center. Run the executable file named vstor_redist.exe with administrative rights. The "Fatal error during installation" code can be
It verifies the digital signatures of add-ins to ensure they haven't been tampered with.
You can use this for a knowledge base, a blog post, or internal documentation.
The runtime version required is determined by the Visual Studio project template used to create the solution, not the version of Office installed. The "2010" runtime became a widely adopted standard because it supports a vast range of both older and modern Office versions. It is required for Office solutions built with . It also continues to be included with various Microsoft Office and Visual Studio releases, making it a foundational technology in this ecosystem.