Configure form regions permissions

By default, all form region customizations are permitted to run in Outlook. By using this setting, you can disable all form region customizations, or specify that form regions must be registered on a per-computer basis, rather than a per-user basis.

Configure form regions permissions:

0. All form regions are allowed to run
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\addins
   Value Name	disableformregions
   Value Type	REG_DWORD
   Value	0

1. Allow only those registered in HKLM
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\addins
   Value Name	disableformregions
   Value Type	REG_DWORD
   Value	1

2. No form regions are allowed to run
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\addins
   Value Name	disableformregions
   Value Type	REG_DWORD
   Value	2