To provide a non-transitory storage medium and a client device, both having a printer driver (PD), that are capable of suppressing the performance degradation of the printer driver resulting from a time required for exchanging a setting information of the function of the printer driver between the print server (PS) and the client device (CD). In an embodiment, the non-transitory storage medium, that includes the PD for an MFP that is to be executed by the CD causing the MFP to print via the PS controlling the MFP, restricts the available functions among the functions of the PD to reduce the size of the Devmode to be transmitted to the PS, when the communication speed between the PS and the CD is smaller than or equal to a specified speed.