Does Microsoft Office 365 Business - Microsoft Store Version supports VSTO COM Add-ins?
Add-in not listed on Disabled Add-ins list either.
I've created Dummy Add-in entry as registry key HKEY_CURRENT_USER\Software\Microsoft\Office\Word\Addins\Dummy with it's required values (Description, FriendlyName, LoadBehavior, Manifest).
I've put dummy contents for listed key pair values, with no Add-in being listed under COM Add-ins list (for Word in this case).
Add-in appears on COM Add-ins list under Microsoft Office 365 Business, Click-to-Run Version (another machine), but not appearing under Store Version.
Microsoft Office 365 Business, Microsoft Store Version was preinstalled on Dell Latitude laptop.