Office
A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.
1,436 questions
Outlook VSTO Addins suddenly stopped showing/working - July 2024
Marc Maynard Alfaro
80
Reputation points
Hi All,
We have a few Outlook VSTO add-ins that are in use in our company, and earlier today, we were still able to use them. This evening, there was a popup saying that a new version of Outlook is required (screenshot below):
After restarting Outlook, our VSTO add-ins won't show. I can see that they are NOT disabled in the COM Add-ins settings, but the ribbon tabs, context menus, etc are all gone.
Can anybody advise what's going on? Has Microsoft stopped support of VSTO add-ins?
Office