(a)Generally. – Whenever an order of court provides for service of a rule, or order in lieu of summons or a rule, upon a party, service shall be made in the manner provided in Rule 4(d), unless the order prescribes a different mode of service. Rule 45 governs the service of subpoenas. (b)Process part of record. – Original, mesne, and final writs and process of every nature, and proofs of service and returns endorsed thereon, and all orders and notices served or published, and all proofs of service and certificates of publication and all other papers filed in relation to such process, orders, and notices, are a part of the record of an action for all purposes.