Providers with ASP.NET 2.0 Support
By fully adopting to ASP.NET 2.0, EPiServer CMS is compatible with most providers that are based on ASP.NET 2.0 technology. The following page is a starting point for finding provider samples and downloads.
ActiveDirectory from Microsoft
MySQL Membership Provider from Code Project
SQLLite 3 from eggheadcafe.com
MySQL Profile Provider from Code Project