Offline Address Book: Prompt before Downloading Full OAB

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\exchange\exchange provider

Value name: allow full oab prompt

Enabled: allow full oab prompt = 1

Disabled: allow full oab prompt = 0

Specifies that the user is asked for permission before initiating a full download of the offline address book.