Disable web add-in installation on migration to new Outlook for Windows

This policy setting allows you to disable installation of web add-in equivalents of COM add-ins on the switch to new Outlook. The add-ins available for migration are listed in https://aka.ms/newoutlooksettings. Learn more about Outlook web add-ins at https://learn.microsoft.com/office/dev/add-ins/outlook/outlook-add-ins-overview. COM add-ins do not work in new Outlook for Windows. By default, users in the organization will get the option to install available web add-ins, in place of COM add-ins, when they move from classic Outlook for Windows. If you enable this policy setting, users will not get the option to install web add-ins in place of their COM add-ins. If you disable or do not configure this policy setting, users will get an option to install web add-ins in place of their COM add-ins.

This policy has no additional user input fields.

• User
  Add new categories

  Windows7
• User
  Block all unmanaged add-ins

  Windows7
• User
  Deactivate Outlook web add-ins whose equivalent COM or VSTO add-in is installed

  Windows7
• User
  Disable VLV Browsing on LDAP servers

  Windows7
• User
  Disable Windows event logging for Outlook add-ins

  Windows7
• User
  Do not display "Open this task" button for workflow tasks

  Windows7
• User
  Do not download rights permission license information for IRM e-mail during Exchange folder sync

  Windows7
• User
  Do not expand Contact Groups

  Windows7
• User
  Do not show unread message count on Windows Welcome screen

  Windows7
• User
  Extend Outlook Autosave to include encrypted e-mail messages

  Windows7
• User
  List of managed add-ins

  Windows7
• User
  Managing Categories during e-mail exchanges

  Windows7