Inclusion list for low file types

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

This policy setting allows you to configure the list of low-risk file types. If the attachment is in the list of low-risk file types, Windows will not prompt the user before accessing the file, regardless of the file's zone information. This inclusion list overrides the list of high-risk file types built into Windows and has a lower precedence than the high-risk or medium-risk inclusion lists (where an extension is listed in more than one inclusion list). If you enable this policy setting, you can specify file types that pose a low risk. If you disable this policy setting, Windows uses its default trust logic. If you do not configure this policy setting, Windows uses its default trust logic.

No explicit registry values are set for enabled or disabled states.

• User
  Default risk level for file attachments

  At least Windows XP Professional with SP2
• User
  Do not preserve zone information in file attachments

  At least Windows XP Professional with SP2
• User
  Hide mechanisms to remove zone information

  At least Windows XP Professional with SP2
• User
  Inclusion list for high risk file types

  At least Windows XP Professional with SP2
• User
  Inclusion list for moderate risk file types

  At least Windows XP Professional with SP2
• User
  Notify antivirus programs when opening attachments

  At least Windows XP Professional with SP2
• User
  Trust logic for file attachments

  At least Windows XP Professional with SP2