(a) Service of process on a registered agent may be made in the manner provided by law for the service of a summons, as if the registered agent was a defendant.

(b) Service of process on the secretary of state as agent of a domestic corporation formed under article four of this chapter or an authorized foreign corporation shall be made by personally delivering to and leaving with the secretary of state or his or her deputy, or with any person authorized by the secretary of state to receive such service, at the office of the department of state in the city of Albany, duplicate copies of such process together with the statutory fee, which fee shall be a taxable disbursement. Service of process on such corporation shall be complete when the secretary of state is so served. The secretary of state shall promptly send one of such copies by certified mail, return receipt requested, to such corporation, at the post office address, on file in the department of state, specified for the purpose. If a domestic corporation formed under article four of this chapter or an authorized foreign corporation has no such address on file in the department of state, the secretary of state shall so mail such copy to such corporation at the address of its office within this state on file in the department.

(c) If an action or special proceeding is instituted in a court of limited jurisdiction, service of process may be made in the manner provided in this section if the office of the domestic corporation formed under article four of this chapter or foreign corporation is within the territorial jurisdiction of the court.

(d) Nothing in this section shall affect the right to serve process in any other manner permitted by law.