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

.NET Native Deep Dive: Optimizing with Runtime Directives
This post was authored by Morgan Brown, a Software Development Engineer on the .NET Native team. It is the fifth post in a series of five about Runtim... more
.NET Native Deep Dive: Making Your Library Great
This post was authored by Morgan Brown, a Software Development Engineer on the .NET Native team. It is the fourth post in a series of five about Runti... more
.NET Native Deep Dive: Help! I Didn't Hit a MissingMetadataException!
This post was authored by Morgan Brown, a Software Development Engineer on the .NET Native team. It is the third post in a series of five about Runtim... more
One developer's experience with .NET Native
Helge Mahrt has published an interesting blog post on his experience using .NET Native on his Windows Store app, 499+1px. The post includes a first-le... 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

ATTDeveloperProgram
AT&T Developer Program
Expose AT&T APIs like Speech, SMS, and MMS through the AT&T API SDKs for Windows. Use the sample code, source code, and intrinsic features to quickly build and release C# and Visual Basic applications to market.