Developer Tools

    Thank you for downloading

    • Visual Studio 2012 Extensions for the Windows Library for JavaScript

      If your download does not start after 30 seconds, Click here
        • Installing and Uninstalling
          To optimize your setup experience, we strongly recommend that you install the latest updates and patches from Visual Studio Update and Microsoft Update and close Visual Studio before you begin installing the Visual Studio Extensions for the Windows Library for JavaScript.

          When you uninstall the Visual Studio Extensions for the Windows Library for JavaScript through Programs and Features, the components will be uninstalled automatically.

          How to migrate your existing projects and Windows Store apps to the latest release of the Windows Library for JavaScript
          If your app depends upon Microsoft.WinJS.1.0, then you will simply need to rebuild, test, and republish your app to the Windows Store. If your app depends upon Microsoft.WinJS.1.0.RC or an older version of the Windows Library for JavaScript, see Migrating a Windows Store app to the latest Windows Library for JavaScript for instructions on how to migrate an existing project or Windows Store app the latest release of the Windows Library for JavaScript.

    Popular downloads

      • 01

        Microsoft .NET Framework 4 (Web Installer)

        The Microsoft .NET Framework 4 web installer package downloads and installs the .NET Framework components required to run on the target machine architecture and OS. An Internet connection is required during the installation. .NET Framework 4 is required to run and develop applications to target the .NET Framework 4.

      • 04

        Microsoft .NET Framework 3.5 Service Pack 1

        Microsoft .NET Framework 3.5 Service Pack 1 is a full cumulative update that contains many new features building incrementally upon .NET Framework 2.0, 3.0, 3.5, and includes cumulative servicing updates to the .NET Framework 2.0 and .NET Framework 3.0 subcomponents.

      • 05

        Microsoft .NET Framework 3.5

        Microsoft .NET Framework 3.5 contains many new features building incrementally upon .NET Framework 2.0 and 3.0, and includes .NET Framework 2.0 service pack 1 and .NET Framework 3.0 service pack 1.

    Loading your results, please wait...

    Free PC updates

    • Security patches
    • Software updates
    • Service packs
    • Hardware drivers

    Microsoft suggests

    Download free tools to build apps for Windows.
    Download free tools to build apps for Windows
    Develop apps that reach the entire family of Windows devices.
    Get started