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.NET Framework and .NET SDKs

The .NET Framework is the easiest way to build apps on the Microsoft platform. You can download Visual Studio Express for free, and be coding in just a few minutes. You can also use the .NET SDKs and targeting packs to build apps for a given Microsoft platform, such as Microsoft Azure.

What's New with .NET Framework

.NET Framework and .NET SDK Downloads

Try out the new releases: .NET Framework vNext, ASP.NET vNext, .NET Native and RyuJIT
Today, we are announcing updated versions of .NET Framework vNext, ASP.NET vNext, .NET Native and RyuJIT. You can try out these new releases by instal... další
Visual Studio “14” CTP 3 and Entity Framework
Today we’re providing a third CTP of the next version of Visual Studio, to gather your early feedback. For more information on this release, see Visua... další
August 2014 Security Updates
The .NET team released a security bulletin today as part of the monthly “patch Tuesday” cycle. Microsoft Security Bulletin MS14-046 - Impo... další
Moving to the .NET Framework 4.5.2
A few months ago we announced the availability of the .NET Framework 4.5.2, a highly compatible, in-place update to the .NET 4.x family (.NET 4, 4.5, ... další

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.NET Compiler Platform ("Roslyn")

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. You can build code analysis tools with the same APIs that Microsoft is using to implement Visual Studio!

Microsoft .NET Native

.NET Native compiles C# to native machine code that performs like C++. You will continue to benefit from the productivity and familiarity of the .NET Framework with the great performance of native code. Popular Windows Store apps start up to 60% faster and use 15-20% less memory when compiled with .NET Native.

.NET Framework Development Guide

Learn how to create, configure, debug, secure, and deploy your .NET Framework apps with our roadmap. Check out the how-to and walkthrough directory to find the code examples that you need. Also learn how to write cross-platform libraries with Portable Class Libraries.

What’s New in the .NET Framework 4.5

Read about the many new features and enhancements, including the new asynchronous programming model, the new HTTP API, Workflow authoring and versioning enhancements, and support for creating Windows Store apps.

Developing Apps for Microsoft Platforms

Visit MSDN to learn about creating apps that build your business, for Windows Store, Windows Phone, and Microsoft Azure.

Featured Partners

National Instruments Corp.
National Instruments Corp.
Measurement Studio reduces development time by providing user interface components, data analysis, and instrument control and data acquisition class libraries designed for engineers and scientists.