This is an inbuilt function function provided by PPWIZARD.
This function (like the /color switch on the command line) can be used to turn use of color on or off. If PPWIZARD knows that it can't support colors in your operating system it will not allow you to turn it on!
This function takes a single parameter whose value should be "Y" or "N".
Note that the previous value is returned by this function.