JCB Credit Card Validator - Version 1.8 Still a very simple ActiveX DLL.You provide a credit card number and it returns true or false according to the validity + the name of the card :Version 1.8 recognizes Visa, Amex, Diners, enRoute, JCB, Discover/Novus, Autralian Bankcard etc. It has now complete install/uninstall features.