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Excel addin silent install for all users on TSE (security warning)

Copper Contributor



We are testing our new Terminal Server infrastructure (not in production yet) to provide access to Excel for our users. We have installed a proprietary plugin for them, and the issue is : everytime a user log on the server for the first time and starts excel, he is a facing the following security warning : 


Is there a way to install this plugin once and for all for everyone ? Or to hide this warning and force a silent install ?


If it's not possible, disabling it by default with the possibility for the user to enable it in the COM plugins developper tab would be acceptable too.

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