CardVal is a DLL that allows developers to easily include complex credit card validation features in their programs. CardVal also has a low filesize (just 32kb), minimizing the impact upon your software's installation size. CardVal can validate the following types of credit cards: - VISA - Mastercard - Eurocard - American Express - Diners Club - Carte Blanche - Discover - enRoute - JCB CardVal can be used with any programming language that supports COM. E.g:VBScript, Visual Basic (Versions 4+), VBA (Word, Excel, Access), Delphi, ASP etc.