Deactivate Outlook web add-ins whose equivalent COM or VSTO add-in is installed: registry value policyonUserHKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin

Policy ID: L_EquivalentCOMAddin
Scope: User Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Outlook 2016 › Miscellaneous

Registry

policyon

REG_DWORDUser

HKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin Current key

Enabled value: 1
Disabled value: (delete value)

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin]

; Options (use only one)
; Enabled
"policyon"=dword:00000001
; Disabled
"policyon"=-

CMD

:: Options (use only one)

:: Enabled
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin" /v "policyon" /t REG_DWORD /d 1 /f
:: Disabled
reg delete "HKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin" /v "policyon" /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin' -Name 'policyon' -PropertyType DWord -Value 1 -Force | Out-Null
# Disabled
Remove-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin' -Name 'policyon'

(list values)

REG_SZUser

HKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin Current key

Enabled value: Depends on the option value
Element: Outlook web add-ins to deactivate
Value type: REG_SZ
Explicit value name: true

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin]
"<enter name>"="<enter value>"

CMD

reg add "HKCU\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin" /v "<enter name>" /t REG_SZ /d "<enter value>" /f

PowerShell

New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin' -Force | Out-Null
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\addins\equivalentcomaddin' -Name '<enter name>' -PropertyType String -Value '<enter value>' -Force | Out-Null