A program product for enabling a computer to control operations of a printer. The computer includes a display and a pointing device for controlling a position of a pointer on the display. The program product includes: software instructions for enabling the computer to perform predetermined operations and a computer readable medium bearing the software instructions. The predetermined operations include: displaying a printer icon corresponding to the printer; and enlarging the printer icon so as to include an indication of a function of the printer when an operation of the pointing device causes a print data icon that corresponds to a print data to be moved adjacent to or at a position of the printer icon.