A method for transferring data files between processors in a linked network of computer processors, under applications program control operable in one or more of the processors, wherein a special applications program instruction is devised to cause the executing computer to process a utility program...http://www.google.ca/patents/US4891785?utm_source=gb-gplus-sharePatent US4891785 - Method for transferring data files between computers in a network response to generalized application program instructions
