Show Contacts linking controls on all Forms
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\outlook\preferences Value name: showcontactfieldobsolete
Enabled: showcontactfieldobsolete = 1
Disabled: showcontactfieldobsolete = 0
Description
By default, Tasks, Appointments, Journal Entries, and Contacts hide the controls in the Outlook user interface used for linking related contacts. When you enable this setting, the linking controls appear in Outlook. You might choose to enable this setting if your users rely on contact linking - for example, to track partners who attend appointments together or to track ways in which contacts are related to each other.