This course teaches developers to build data-centric applications and Web services with Microsoft® ADO.NET, Microsoft SQL Server 2000, and the Microsoft .NET Framework. This course contains virtual labs. A note about virtual System Requirements: If you access the Internet from behind a proxy server, you may not be able to take a virtual lab. This affects AOL and Gateway.net users who use a modified browser and those who access virtual lab technology from behind a corporate firewall. Modified browser users should use either Internet Explorer or Netscape Navigator (both 4.0 or higher). Users behind a corporate proxy server should access virtual lab technology through a commercial ISP account. NOTE: Connection to the real PCs and servers is done via the VNS protocol. As a result, there is a requirement for a connection through ports 5800-5821 and 5900-5921.