I am finding little or no information online about using C#.NET to access PayPal REST APIs. I really need a basic introduction - is there a decent explanation online somewhere? Basically, if I create a brand new Winforms C#.net app, what are the first steps to get access to the PayPal API. What I am trying to do is send PayPal invoices that include information in my own program - I'm starting fresh because I'm replacing a VB6 program, so I can go in just about any direction here - I do want a standalone app, not something web-based. I orginally chose VB.NET but found even less information online for that so I'm switching to C#. I've found C# code for using OAuth and I already have the client ID and "secret" set up on PayPal. The problem is that I have NO IDEA whatsoever where to put the sample code - everywhere I try doesn't seem to work. In the past, I've been able to find a sample program that allows me to get the general idea, but I can't find anything online. Let me know if you need me to be more specific. Really I just need something that gets me using the PayPal API and I can do the rest. Thanks in advance!
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