Which are the main components of the .NET platform? The Microsoft .NET platform consists of the following product groups/ main components... Development tools A set of languages, including C#, VB.NET, J#, a set of development tools, including Visual Studio.NET (a suite of language-independent developer tools, a set of programming interfaces), .NET Framework (for building web and Windows applications, as well as web services), and Common Language Runtime, which is the execution engine for .NET Framework applications