A method and apparatus allows a client or other device separate from a server to retrieve from the server more data than is requested by an application program on the client. The additional data is maintained by the client or other device and provided to the application program in response to a subsequent...http://www.google.com.au/patents/US6421715?utm_source=gb-gplus-sharePatent US6421715 - System and method for generating and transmitting a command in response to a request for additional data and data described in the request
