I am a user. I expect a program to work on its own, and not have to be installed into another programs directory.If the program is ziped, as this one is, it should have auto extration. I would pay the $30.00 for the pro version if it came on a CD, or DVD, and extracted itself into its own directory and was stand alone, or a master module that came with the first module you ordered like Extra Boy, and of which the other models would automatically install into. As far as that is concerned, why not have all the programs you offer on one DVD, and have a license for each module to activatre that module?