Skip to main content

.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

ASP.NET MVC Security Bulletin MS14-059 ships to help secure .NET NuGet Libraries
Microsoft Security Bulletin MS14-059 – Important: Vulnerability in ASP.NET MVC Could Allow Security Feature Bypass (2990942) This is the first r... more
EF7 – v1 or v7?
A while ago we blogged about EF7 targeting new platforms and new data stores. In that post we shared that our EF6.x code base wasn’t setup to ac... more
EF7 - What Does “Code First Only” Really Mean
A while back we blogged about our plans to make EF7 a lightweight and extensible version of EF that enables new platforms and new data stores. We also... more
October 2014 .NET Security Updates
The .NET team released a security bulletin today as part of the monthly “patch Tuesday” cycle. Microsoft Security Bulletin MS14-057 - Crit... more

Get Started

.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

As User Experience experts making leading User Interface tools, Infragistics empowers .NET developers to create UIs for Killer Apps with extreme functionality, complete usability and the "Wow-factor!"