Using the tried and true Paypal IPN system this software automates file delievery via email. The file can be attached to the email or a Secure Download Link is included. To quickly place a Digital Product(file) for sale, first upload the product into the software, then publish the supplied code to your PHP document. A paypal button with product info will be displayed or display as just a hyperlink. The paypal button will take the customer though the paypal payment system. The customers payment will trigger Paypal IPN. Paypal IPN will communicate with this software to verify payment and deliver product. Make money while you sleep. :)