I downloaded this so that the company I work for could use it for our CAPTCHA. We used it for one site and the a few months later we are trying it on another. We have some questions but unfortunately support has run out since we are past our 30 days purchase point. The product is very complicated in many ways and even though it doesn't require hand coding, you'd better be willing to put some time in or already know what you're doing with PHP scripting. One little thing done wrong, the whole thing breaks. I am still trying to figure out how to get the invalid code message to pop up.