Examining ASP.NET 2.0's Membership, Roles, and Profile - Part 1 - learn about how the membership features make providing user accounts on your website a breeze. This article covers the basics of membership, including why it is needed, along with a look at the SqlMembershipProvider and the security Web controls. Examining ASP.NET 2.0's Membership, Roles, and Profile - Part 2 - master how to create roles and assign users to roles. This article shows how to setup roles, using role-based authorization, and displaying output on a page depending upon the visitor's roles. Examining ASP.NET 2.0's Membership, Roles, and Profile - Part 3 - see how to add the membership-related schemas to an existing database using the ASP.NET SQL Server Registration Tool (aspnet_regsql.exe). Examining ASP.NET 2.0's Membership, Roles, and Profile - Part 4 - improve the login experience by showing more informative messages for users who log on with invalid credentials; also,