The Authorize.net AIM 3.1 Component for .NET is a Microsoft .NET Framework 1.1 compatible assembly for Authorize.net. This component will check your transaction before sending it to the credit card gateway. The assembly includes the all fields required to present a credit card to the gateway, error checking with exceptions, an easy to understand class for the results, and complete support for the gateway. In addition, the component includes lifetime support and upgrades.