In part one of this series, we have introduced to you the ASP.NET 2.0 application services including Membership, Role, and Profile services. These services can be configured in a matter of few minutes inside the Web.config configuration file and you can start making use of them in your application.

In addition, ASP.NET 2.0 AJAX 1.0 Extensions application services were covered too. These are client-side services that allow applications, from the client-side JavaScript, to contact the application services on the server. What happens is that, when you configure your application to work with application services using JavaScript, client-side proxies will be created on the client side to make it an easy task for the JavaScript code to access the server services.

Moreover, a detailed overview was given on the Client Application Services introduced by Visual Studio 2008 and .NET 3.5 that allows client applications including Windows Forms and Windows Presentation Foundation applications to access the same database used for user management by web and Ajax application. This feature depends on the ASP.NET 2.0 AJAX 1.0 Extensions application services.

In this article we will demonstrate how to create a Web application to host the ASP.NET 2.0 AJAX 1.0 Extensions Application Services, create a Windows Forms application that will enable authentication and authorization and show you how this client application will contact the web host application for the purpose of authenticating users and authorizing them to access specific sections of the resources present in the application.