- Support for enabling existing ASP.NET 2.0 pages for AJAX
- Creation of ASMX & WCF based web services and consuming them from AJAX Library
- ASP.NET server side application services like authentication, roles management exposed as web services
- ASP.NET Merge Tool - a new tool for merging pre-compiled assemblies
- New ListView control which supports edit, insert, delete, sorting & paging
- ASP.NET integrated with core IIS 7.0 which makes ASP.NET services like authentication & caching available for other content types also.
- Microsoft AJAX Library to support AJAX based web development