Computer Readable Medium for Installing Software

A computer readable medium storing a computer program, the computer program for installing software on a processing device, the software being used for sending a function performing instruction to a function performing device via a network, the computer program including instructions for ordering a computer mounted on the processing device to perform:

• acquiring a first IP address assigned to the function performing device;
• acquiring a unique network device name provided to the function performing device by using the first IP address;
• attempting to acquire a second IP address by using the network device name;
• determining whether the second IP address identical to the first IP address has been acquired;
• and
• installing the software in which the network device name is set as a destination of the function performing instruction in a case where it is determined that the second IP address identical to the first IP address has been acquired.