Visual Studio.NET
The latest version of Visual Studio—Visual Studio.NET—incorporates ASP.NET, ADO.NET (ActiveX Data Objects), Web services, Web forms, and language innovations for Visual Basic.
The development tools have deep XML support, an XML-based programming model and new object-oriented programming capabilities.
Visual Basic.NET
Visual Basic.NET is the third-generation event-driven programming language and integrated development environment (IDE) from Microsoft for its COM (Component Object Model) programming model, which is used to enable interprocess communication and dynamic object creation.
SQL Server
SQL Server is a fully web-enabled database.
SQL Server has strong support for XML and HTTP which are two of the main infrastructure technologies for .NET.
Some of SQL Server features are direct access to the database from a browser and query of relational data with results returned as XML.
Internet Information Services (IIS)
IIS, a web server from Microsoft, has strong support for more programming to take place on the server, to allow the new web applications to run in any browser on any platform.