It isn’t the program that would be the question, it’s the operating system. If you are using “an old computer that has WordPerfect instead of Word”, you are probably using an older OS. The drivers allow the Trackman to talk to your OS. Your OS then talks to the program. If Logitech has a driver for the Trackman that will work with your OS, it will work with the WordPerfect running on that computer. Check the Logitech website to verify if they have a driver for the Trackman that will work with your OS.