The GetThisOrganizationRoot method returns the owning
organization of the supplied object. The owning organization will
be either the hosting organization, a reseller, or a customer. The
supplied object may be any member of the owning org. If you call
this procedure and supply an object that happens to be an owning
organization, the return value is the same as the supplied
To find the hosting organization that owns a reseller, or the
reseller that owns a customer, call GetForeignOwnerOrg on the
reseller or customer root organization.
This call is implemented internally by checking the other
WellKnownObjects property of the containing organizational unit of
the object (or the object itself, if it is an organizational unit).
If the object is an organizational unit, it's organization root can
be bound to as LDAP://<WKGUID=CC016CF08DEF4EA4A05C9C54B198785A,