.NET Framework

The .NET Framework is a popular development platform for building apps for Windows, Windows Store, Windows Phone, Windows Server, and Windows Azure. The .NET Framework platform includes the C# and Visual Basic programming languages, the common language runtime, and an extensive class library.

.NET Tools and SDKs

What's New with .NET Framework

.NET Framework

Portable HttpClient is now available as RC
Three months ago we shipped the first preview of the portable HttpClient. Many of you wondered when we would ship the RTM version. Today, we’re ... more

Announcing the release of AMQP support with Windows Azure Service Bus
For the past five years, Microsoft has been working with a diverse group of companies to develop the Advanced Message Queuing Protocol (AMQP) standard... more

Redirecting ASP.NET Legacy URLs to Extensionless with the IIS Rewrite Module
ASP.NET has included support for "friendly URLs" for a while now. ASP.NET MVC has always supported friendly URLs and more recently, so has W... more

ASP.NET hosts six community created SPA templates now
Since announcement of 4 community created Single Page Application templates when releasing ASP.NET and Web Tools 2012.2 in February 2013, the communit... more

Get Started

	.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 Windows Azure.

.NET Framework Downloads

Who’s Talking about .NET?

.NET Libraries (NuGet)

Microsoft Platforms

Featured Partners

Blueprint Software Systems Inc.
Blueprint is a complete cloud-based solution for collaborative requirements definition and management that adds rich, visual requirements capabilities to any Microsoft Team Foundation Server project.