Fax Subkey
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
HKLM\SOFTWARE\Microsoft\
Description
The Fax sub key stores configuration data for the Fax Service. This sub key and its contents appear only when you install the Fax Service.
Change Method
You must restart the Fax Service to make changes to entries in this subkey effective.