com add-ins

COM add-ins are components that extend the functionality of Microsoft Office applications, particularly Outlook. When planning a migration to the new Outlook for Windows, IT teams should test COM add-in dependencies to ensure compatibility. The new Outlook may not support all COM add-ins, so validating them before switching is critical. Users who rely on unsupported COM add-ins should remain on classic Outlook until compatibility is confirmed. This tag covers discussions about COM add-in testing, migration planning, and troubleshooting add-in issues in Outlook and other Office apps.