A storage medium for storing a program that switches a plurality of printing apparatuses by changing a port of a logical printer for printout and is executed by a computer having a storage unit configured to associate the port with device settings for storing it, the computer comprising a reflecting unit configured to acquire the stored device settings corresponding to the changed port to reflect the stored device settings in the device settings held by the logical printer if the port is changed; and a changing unit configured to change print settings so as not to be inconsistent with the device settings to be reflected by the reflecting unit.