For our webhosting sites we use a PHP/MySQL system called AWBS (Advanced Webhosting Billing System). This system is paritally Zend encoded but it is possible to write extra/external modules. We would like to have some modules for this system that do the following. - A dutch .nl registration module that sends data to the SIDN registry server and interprets the input. - A payment module that sends data (like paypal) to a Dutch Payment processor and replies back. - A third party...