.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

NuGet Package Restore Issues
We’ve received several reports that our NuGet packages broke the NuGet package restore feature. In this post, I’ll explain what the issue ... more

View Persisted Logs in Azure Storage in Visual Studio 2012
In ScottGu’s Blog “ Announcing the release of Windows Azure SDK 2.0 for .NET ”, among all other new features, you learn how to stream your Windows Azu... more

Windows Azure: Major Updates for Mobile Backend Development
This week we released some great updates to Windows Azure that make it significantly easier to develop mobile applications that use the cloud. These n... more

Portable Compression and HttpClient Working Together
Today we’re happy to announce that we released two NuGet packages: A brand new Microsoft.Bcl.Compression (Beta). A portable compression library... 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

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.NET Libraries (NuGet)

Microsoft Platforms

Featured Partners

OpenSpan, Inc.
OpenSpan is a leading provider of application integration and automation software for the enterprise. Global 2000 enterprises leverage the OpenSpan Platform to integrate applications, service-enable legacy systems, automate business processes, extend functionality and build new composite applications in order to realize immediate value on their IT investments.