KUKCallback.net Control, the most powerful, robust, callback control available in the market today for ASP.NET with AJAX support. Written in 100% managed C# code, KCallback.net provide callback functionality in your web applications. The KCallback.net control allows developers to AJAX-enable any ASP.NET application with writing a few lines of code. It allows to update page content without postback and loss of scroll position! In the core of the control KCallback.net can make selected controls on the page perform AJAX callbacks instead of traditional postbacks. The whole AJAX behavior of the page is controlled through a single control, called KCallback.net control. KCallback.net control uses AJAX (Asynchronous JavaScript and XML) technology to communicate with server side function to update portion of the client-side page without reloading the whole page. With KCallback.net control, complex content can be updated from server "in live" and end user has a smooth browsing experience. It is extremely useful when heavy server-side processing is needed, e.g, accessing a database, contacting a web service. In addition, nothing is used except common DHTML/remote scripting techniques. There is no use of Flash, Java, or other plug-in technology.