: The VSTOLoader.dll creates a unique application domain for each solution assembly to ensure isolation.
(Only works on .NET 3.5 or earlier; .NET 4+ uses different security model.)
<Property Id="VSTOR2010Installed"> <RegistrySearch Id="VSTORReg" Root="HKLM" Key="SOFTWARE\Microsoft\VSTO Runtime Setup\v4R" Name="Version" Type="raw" /> </Property> visual studio tools 2010 for office runtime
The is a essential component required to run Microsoft Office-based solutions built using Visual Studio 2010 through newer supported versions. It acts as a bridge that allows Office applications to host the .NET Framework Common Language Runtime (CLR) . Core Components & Features
The is a fundamental software component required to run Microsoft Office-based solutions built with Visual Studio. While its name refers to the 2010 version of Visual Studio, this runtime remains a vital bridge for modern VSTO add-ins, including those developed in Visual Studio 2013, 2015, 2019, and 2022. What is the VSTO Runtime? : The VSTOLoader
For Office 2016/365, Microsoft recommends Office Add-ins (web tech) or VSTO (with 2010 runtime). VSTO is still fully supported but no longer being extended.
the runtime only if:
The runtime consists of three primary components that manage how Office extensions load and run:
This is the most common error. It usually means: Core Components & Features The is a fundamental