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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

Thank you for your contributions
Since going open source, Roslyn has had 45 and Visual F# has had 29 unique code contributors external to Microsoft. To celebrate and appreciate our fi... další
New C# T-Shirt Designs on the .NET Blog - Tell Us What You Think
[HTTP 301: Hey, just so you know, we're posting on the .NET team blog now. Head over there for new content from the C# team and more. Below is an summ... další
New VB T-Shirt Designs on the .NET Blog - Tell Us What You Think
[HTTP 301: Hey, just so you know, we're posting on the .NET team blog now. Head over there for new content from the VB team and more. Below is an summ... další
Save the day with a Visual Basic, C#, or F# T-Shirt!
Mads and Dustin showed off these stylish little numbers at BUILD and ever since we've been getting pinged by community members wanting to know where t... 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.