I had downloaded the interface specification from the Element Express web site and then, in my dev environment, I just added a web reference to their test URL defined in that spec. From that point, I was actually able to copy and paste the sample code they had in the spec to connect to them.
Comment on Re^2: Element Express credit card processing
esper,
Just out of curiosity what are you trying to integrate to? We have a system that will do all of the integration for you if you are trying to integrate credit card processing to a certain software. We have developed everything so we plug it in to whatever you need to integrate to...very simple
call me at 480-456-6225 ext. 100