A system and method for incrementally executing a client/server application leveraging existing communications network infrastructure having at least one client computer and at least one server computer. The system includes a server component comprising a plurality of portions, and provided on the at least one server computer and a client component provided on the at least one client computer, the client component including one or more command selectors. Each of the one or more command selectors has associated code for selecting a function available from the plurality of portions of the server component. Further, each of the one or more command selectors has an associated parameter for use by the server component in determining the appropriate portion of the plurality of portions to execute to provide the selected function.