SpiceLogic Inc. offers a single DLL ASP.NET Server Control that will do everything for you if you want to develop an e-commerce web application with PayPal Website Payments Standard. Enhanced Design time Smart Tag GUI will guide you to generate any kind of PayPal supported buttons (BuyNow Button, Donation Button, Add to Cart Button, Subscription Button, Cancel Subscription Button, Upload Complete Cart Button, View Cart Button). Strong Object Oriented Programming Interface. PayPal Encrypted Website Payments buttons can be generated on the fly either from design time GUI or programmatically by providing the Certificates parameters. If you do not have PKCS12 and PEM certificates, Guess What! The design time GUI will generate those certificates for you. You just need to stick to this control.

IPN & PDT is considered as if those are the very control's server side events where all IPN & PDT variables are available as the properties of Event Argument Class. Very organized collection classes and composite properties are available for providing an object oriented pleasure to the web application developers.