To do an online credit card transaction in ASP.NET using PayPal Payflow Pro, you’ll need to set up a Payflow Pro online payment gateway account at PayPal.com, download and install .NET SKD for Payflow Pro, and create an ASP.NET application that sends a transaction request to and receives a transaction response from Payflow Pro.
Payflow Pro Online Payment Gateway Account
At the time of writing this article, the account creation link is: https://registration.paypal.com/welcomeP
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