I want specific control over the users who can use the add-in

You are here:

You can do so in the registry.
By default the add-in will be loaded for all users. However, this behavior can be changed easily by removing the add-in from the HKLM and adding it to the HKEY_CURRENT_USER.

https://www.dragdrop.com/download/DragDrop_UserInstall_x86.reg (use with 32bit Outlook)

https://www.dragdrop.com/download/DragDrop_UserInstall_x64.reg (use with 64bit Outlook)

The x86 and x64 are linked to your OFFICE version (NOT to Windows!)

Please note that the removal of the keys from the HKEY_LOCAL_MACHINE might require admin/installation permissions.

Windows Registry Editor Version 5.00


"FriendlyName"="DragDrop for Outlook"
"Manifest"="C:\\Program Files (x86)\\DragDrop\\DragDrop for Outlook - Enterprise\\x64\\DragDrop.vsto|vstolocal"
"Description"="Enables you to drag emails or attachments to your browser (Current User mode)"
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