A non-transitory computer readable storage medium stores program instructions including a set of first program instructions and a set of second program instructions for an information processing apparatus. The set of first and second program instructions control the computer to function as a higher-level module and a lower-level module, respectively. The set of first program instructions causes the apparatus to perform transmitting a first instruction to the lower-level module for instructing the lower-level module to generate second parameters, and transmitting a second instruction to an operating system (OS) via a first application programming interface (API) for instructing the OS to transmit the second parameters to a printer. The set of second program instructions causes the apparatus to perform transmitting the generated second parameters to the higher-level module. The set of first program instructions is written in a programming language that enables the higher-level module to call the first API.