Information processing apparatus and method

A computer program product in a computer-readable medium for tangibly embodying a program of instructions executable by a computer to make the computer function as an information processing apparatus, said apparatus comprising:

• a first memory device for storing a first program including a command to execute other programs;
• a second memory device for storing a second program to perform a predetermined processing in accordance with the command in the first program;
• a third memory device for storing a backup program for the second program;
• a fourth memory device for storing a first state information to substantially indicate that the second program does not properly perform the predetermined processing;
• and
• a first selection device for selecting either one of the second program and the backup program, as a program to be executed in accordance with the command in the first program, on the basis of the first state information.

An information processing method feasible with an information processing apparatus capable of processing a first program including a command to execute other programs;

• a second program to perform a predetermined processing in accordance with the command in the first program;
• a backup program for the second program;
• and a first state information to substantially indicate that the second program does not properly perform its predetermined processing,
• said method comprising:
• a first state information set process of setting or changing the first state information to a first content, when the first program executes or executed the second program or the backup program;
• a second state information set process of setting or changing the first state information to a second content, when the second program or the backup program ends or ended properly;
• and
• a selection process of selecting either one of the second program and the backup program, on the basis of the first state information, when the first program executes again the second program or the backup program.