A network control system includes a control apparatus and a controlled apparatus. The control apparatus includes: a first execution unit which executes a first application program for operating the controlled apparatus; a display unit which displays an operation screen; an operational command generation unit which generates an operational command in response to an input by a user to the operation screen; and a first communication unit which outputs the operational command. The controlled apparatus includes: a second execution unit which executes a second application program, and identifies an operation type of the controlled apparatus; an operation type information generation unit; and a second communication unit which outputs the operation type information. The first execution unit generates an operation screen corresponding to the operation type, and the display unit displays the generated operation screen.