(1)  In an administration proceeding or on an application under rule 604 , the Court or a judge may order that any person who is not a party be given notice of –

(a) the application; or

(b) any judgment or order made on the application.

(2)  Notice of a judgment or order is to be served on a person under disability in the same manner as a writ in an action.

(3)  An affidavit of service on a person ordered to be given notice under subrule (1) is to be filed in the registry.

(4)  On the application of a person served, the Court or judge may discharge, vary or add to the judgment or order.

(5)  Before making an application under subrule (4) , a person served is to appear in the registry in the same manner, and subject to the same provisions, as a respondent who appears.

(6)  An application under subrule (4) is to be made within one month after service.