||This is the primary Service Block interface designed to give some limited visibility into
the general Service Block functions.
||This is the powerful administrative API, through which, direct manipulation of the Service Block can be
||The Service Directory API is the primary high-level interface for general access, although 'general'
is a relative term in this context since most developers may never need to work with the
Service Directory directly.
||This is the administrative API for the ServiceDirectory.