Quote Originally Posted by MartinKneeshaw View Post
Hi

I am coming across the same issue i.e. get a 406 error from my IIS when my payment gateway is returning a longish URL. I believe the security settings on IIS change the MIME type so my browser says that there was an error in payment processing.

Any pointers to what are the settings I can ask my host to change in the IIS configuration?

the URL I am getting from my payment gateway is:

http://zencartroot/index.php?main_page=checkout_process&DR=$OP+dgG1+lqFQBe7E4kZcEkKEDKivrv9juvLUPmh NU2L7BzFg1aJTYfhIjEHCotqxDGsu0zXxmQgWO0UQp6kNh/kVsxEnaZ94X1YHt5r7D++ma9vcUhNiDA41LdMyIWaaWbfHRTbfxoLx0c9jCMlOWMLpBCz9UxooeJs6z5 8VRmjsN2U4oQVOqPL9bQKje/o9/n36vso6Q8ZeyQUEmj6xnekSkYKomjfmhsxMmVoXx6Q+dLWnQiOPwrgnDX2KtoPWr+GurtWTmZvj5AzcV hWO7aITspvT

Thanks!
Um, you're already discussing this at length elsewhere, with guidance already offered.
Your issue is not the same as the topic being discussed in this thread. Yours is invalid coding in your custom payment module, as I've already explained.
ref: http://www.zen-cart.com/forum/showthread.php?t=173008