web services

I watched your order entry demo. However, I also wondered if you can actually attach your web app to a web server for credit card acceptance etc. And if we did that, can you add a logic to do a final order qty check before accepting the credit card transaction. <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=944&image=1&table=forumtopics' class='bbc_emoticon' alt=':unsure:' />