2020-12-26 03:31

Support restricted environments - How to do this if the VSTO redistributable is not found on the machine?

A pre-requisite for a VSTO addin is the VSTO runtime which requires admin level to install - how do we get around this to keep the addin "Support restricted environments"

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  • weixin_39973271 weixin_39973271 4月前

    -Hart FYI

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  • weixin_39897758 weixin_39897758 4月前

    the VSTO runtime will also be installed with Office. If Office is already installed on the machine the runtime should be available.

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  • weixin_39807896 weixin_39807896 4月前


    Thanks for the response.

    Our installer checks the following registry key to get the version of VSTO and if it is not there or it is there but a lower version than the runtime we need, we prompt to install it for our users:

    HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\VSTO Runtime Setup\v4R

    We find that even if Office (2010/2013/2016) is installed, this registry key is not there.

    Is there a different way we should be detecting the VSTO runtime?

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  • weixin_39897758 weixin_39897758 4月前

    depending on how VSTO runtime is installed you may find the version under HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\VSTO Runtime Setup\v4

    This Stackflow discussion has some good information: https://stackoverflow.com/questions/2799941/how-to-determine-if-vsto-2010-runtime-is-installed

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