This is an inbuilt function function provided by PPWIZARD.
This function allows you to specify an input dependancy. The function should be called before the file is read for the most accurate result in all circumstances and is an alternative to the "#DependsOn" command. If you want to add many files you may want to have a look at the "Adding Dependencies via a File Mask" section.
This function takes at least one parameter as follows:
PPWIZARD only remembers the first occurance of the item indicated by the first parameter and ignores others. The return code is "Y" if added otherwise "N".