Microsoft Office Issue - Windows

The Service Description field allows you to specify a custom synopsis for use when this service is being displayed in a list and the full body is not being shown. This field is the same as the Short Description.

Indicates the lowest level of visibility of the service based on the user's sign-in status.

Note: This doesn't refer to the visibility of the form and doesn't change the actual visibility of the service. External should be the default visibility.