Reactive Extensions (Rx) v2.0 Beta

Reactive Extensions (Rx) is a library to compose asynchronous and event-based programs using observable reactive data sequences and LINQ-style query operators.
  • Version:


    File Name:

    Rx SDK 2.0.20304 Beta.msi

    Date Published:


    File Size:

    2.6 MB

      Asynchronous, event-driven "reactive" programming is way too hard in today's world of development tools and frameworks. The huge amount of manual and error-prone plumbing leads to incomprehensible and hard to maintain code. As we reach out to services in the cloud, asynchronous programming is the way of life, requiring a fresh look on the problems imposed by reactive programming. Centered around the concept of observable data sequences, Reactive Extensions (Rx) provides a framework that takes care of the hard parts of reactive event stream programming. Instead of getting lost in the jungle of asynchrony complexity, you now can start dreaming about the endless possibilities of composing queries over asynchronous data sources.

      For more information about these technologies, click Reactive Extensions (Rx) Homepage.
  • Supported Operating System

    Windows 7; Windows 8 Consumer Preview; Windows Phone 7; Windows Server 2008; Windows Server 2008 R2; Windows Server 8 Beta; Windows Vista

      • Any of the following platforms can be targeted using Rx v2.0 Beta:
        • .NET Framework 4.5
        • .NET Framework 4.5 for Metro style applications
        • Silverlight 5
        • Windows Phone 7.1
        The set of supported platforms will be finalized towards the final release of Rx v2.0.
      • The installer also includes a first preview of Rx v2.0 for the .NET Portable Library.
    • Download and Installation
      1. Click the Download button on this page to start the download.
      2. Run the installer and follow the instructions on the screen.
      1. In Visual Studio 2010 or later, open the Add Reference... dialog and add references to the System.Reactive.* assemblies required by your application:
        • System.Reactive.Interfaces contains common interfaces.
        • System.Reactive.Core provides scheduler infrastructure and common base types.
        • System.Reactive.Linq includes the query operators used to write event stream processing queries.
        • System.Reactive.PlatformServices exposes platform-specific functionality, including advanced schedulers.
        • System.Reactive.Providers is used to write LINQ query providers for event data sources.
        • System.Reactive.Windows.Threading should be included for UI synchronization in WPF, Silverlight, Windows Phone, or Metro.
        • System.Reactive.Windows.Forms should be included for UI synchronization in Windows Forms.
        • System.Reactive.WindowsRuntime provides conversions to and from WinRT types.
      2. For Metro style application projects, Rx is available as an Extension SDK in the Add Reference... dialog. Required assemblies are included automatically.
      3. Reference assemblies for Rx can be found in the Program Files (x86)\Microsoft Reactive Extensions SDK folder.