RFC 3881 defines this as "Logical source location within the healthcare enterprise network, e.g., a hospital or other provider location within a multi-entity provider group."
It may be null when the audit-generating application is uniquely identified by Audit Source ID. It differentiates among the sites in a multi-site enterprise health information system.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2