Microsoft .NET is a dedicated platform designed to help developers create new .NET Framework 4 applications with all the components necessary to build and run .NET programs on your system: libraries, subroutines, utilities and other important elements. (function () {('view-application-page-desktop');}); Microsoft .NET Framework 4 is the most recent version of the development platform and includes important new features such as optimizing work with HTML and CSS, support for multi-point management in Windows 7 and the Surface SDK and improvements to debugging in code and the Microsoft .NET Framework. 4 You can run the latest applications developed on the .NET Framework.