PHP License Manager Pro's AJAX interface allows you to view and change licensing restrictions for your software with ease, in real-time. Users can be presented with one of three licensing models: a time-limited trial, a use-limited trial or a required upgrade at your discretion. To prevent unauthorized use or distribution, usage can also be restricted to an IP address. PHP License Manager Pro lets you: control who uses your software, control where your software is used, reduce piracy of your PHP scripts, control the terms of the license and facilitate e-commerce with PayPal Express Checkout support. PHP License Manager Pro gives you: detailed tracking and usage statistics for your software, maximum flexibility for setting usage restrictions, per-client license management and the ability to manage product orders. PHP License Manager Pro is installed on your server and secure.