A method of Web-site host consistency administration provides for consistent presentation of data despite presentation on client machines with inconsistent software-object libraries. The host sends screen images which contact the client's onboard DLLs as little as possible. That way, inconsistency problems called binary incompatibilities are avoided. The client is excused from most of the processing load. The client's role is practically limited to displaying the received screens and sending out keystrokes and cursor-moving device inputs. The light role given the client correspondingly shifts more of a load on server-side processing and data storage. Nevertheless, the method provides high assurance the any client sees substantially the same result for the same request despite differences or inconsistencies in software-object libraries onboard the client's machine.