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What’s vstor_redist.exe (Microsoft Visual Studio Tools for Office Runtime 2010 Redistributable Setup)? Is it safe or a virus?

The file "vstor_redist.exe" is the installer for Microsoft Visual Studio Tools for Office (VSTO) Runtime, a component that enables the execution of Office-based applications or add-ins developed using Visual Studio. It is integral for running applications that integrate with Microsoft Office products like Word and Excel. The redistributable setup ensures users have the runtime environment necessary to support these Office customizations or extensions, even if they do not have Visual Studio installed. This runtime manages the compatibility, reliability, and security of the VSTO-based customizations within the Office applications.

Researched by Carl @ SpyShelter Labs

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Who makes vstor_redist.exe (Microsoft Visual Studio Tools for Office Runtime 2010 Redistributable Setup)?

We’ve found Microsoft Corporation should be the publisher of vstor_redist.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Last updated: March 16, 2025

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