Sterilising/disinfecting agents include all, except:
Dry heat
Ethylene oxide
Ether
Alcohol
Sterilization is the process by which an article, surface or medium is freed of all living microorganisms either in vegetative or spore state.
Sterilization agents are :

Heat
Filtration
Ionizing radiations
Gases (ethylene oxide, formaldehyde gas)
Sterilant liquids

Disinfection means destruction or removal of all pathogenic organism, which are capable of producing the infection. Disinfecting agents are:

Alcohols (ethyl and isopropyl alcohol)
Dyes
Halogens (Iodine, chlorine)
Phenol derivatives (Hexachlorophene, Lysol, cresol)
Biguanides (Chlorhexidine)
Oxidising agents (KMnO4, H2O2)
Quarternary ammonium compounds (cetrimide)
Soaps
Acids
Aldehydes
Metallic salts

– Ether is used as anesthetic agent, not as disinfectant or sterilizing agent.