1. A method of performing remote process execution in a computer network having a plurality of computers each with separate file and separate file addressing systems, comprising the steps of transmitting remote process execution request, including an identification of a process to be executed, from a requesting one of the computers to a serving one of the computers, and establishing a temporary file addressing system extension at both the requesting and the serving computers for the duration of existence of the remote process in response to said request transmission for linking the file system of the requesting computer into the file system of the serving computer, addressing, via the extension in response to a remote process file access, a file located at the requesting computer as an integral part of the file system of the serving computer and not a file at the serving computer.