# Make a callback with data to server and return the results without reloading page. # Send parameters from client to server and from server to client. The parameters are keeping their type (bool, int, string, collection). # Call server functions from client and client functions from server with parameter sending and value returning. # Execute client scripts before the server response is retuned to the function that initiated the callback, but also client scripts that can be executed after that. Compatible with ASP.Net 2.0. ASP.NET AJAX Compatible, Cross-browser: IE, Firefox, Safari, Opera. Easy to customize. Free for students, unemployed and small budget projects,