Allow Active X One Off Forms

By default, third-party ActiveX controls are not allowed to run in one-off forms in Outlook. You can change this behavior so that Safe Controls (Microsoft Forms 2.0 controls and the Outlook Recipient and Body controls) are allowed in one-off forms, or so that all ActiveX controls are allowed to run.

Supported on: At least Windows 7

Sets which ActiveX controls to allow.




  1. Load only Outlook Controls
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\security
    Value Nameallowactivexoneoffforms
    Value TypeREG_DWORD
    Value0
  2. Allows only Safe Controls
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\security
    Value Nameallowactivexoneoffforms
    Value TypeREG_DWORD
    Value1
  3. Allows all ActiveX Controls
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\outlook\security
    Value Nameallowactivexoneoffforms
    Value TypeREG_DWORD
    Value2


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