Short description of Olvio.Ecommerce for Authorize.Net 1.0: Olvio.Ecommerce is a payment processing class library for the Authorize.Net payment gateway. It includes all the latest features, SIM and AIM integration methods, CC and ECHECK processing, hash validation, response stream reader and more. Includes a SimResponseReader class to handle the silent posting from a SIM transaction. It can validate and process transactions for the Wells Fargo merchants. Fully written in C#.