Microsoft Download Center Archive

Microsoft Application Request Routing Version 3 for IIS

  • Published:
  • Version: 3.0
  • Category: Application
  • Language: English

Microsoft Application Request Routing (ARR) 3 for IIS is a proxy based routing module that forwards HTTP requests to application servers based on HTTP headers and server variables, and load balance algorithms.

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Microsoft Application Request Routing (ARR) for IIS is a proxy-based routing module that forwards HTTP requests to application servers based on HTTP headers, server variables, and load balance algorithms.

ARR Version 3 is an incremental release that includes all of the features from Version 2, and adds the following features:

  • Websocket support

  • Support for application-triggered session affinity opt out

  • failcheck reliability improvements

  • Various bug fixes


    • ARR version 3 and previous released cannot be installed side-by-side.

    More details can be found on www.iis.net

    Files

    Status: Deleted

    This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to April 2023.

    Files
    requestRouter_x64.msi
    • SHA1: be34d5d338b260b351c4762f6ede2de3bb844f99
    • Size: 1.62 MB
    requestRouter_x86.msi
    • SHA1: 0375e33051966c7028d5e023d6d70e01aa82a714
    • Size: 1.32 MB

    File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

    System Requirements

    Operating Systems: Windows Server 2012, Windows Server 2012 R2, Windows Server 2008, Windows Server 2008 R2

  • Internet Information Services 7.0 or later must be installed
  • For WebSockets support, Internet Information Services 8.0 or later is required, and the WebSockets module must be enabled

    • Installation Instructions

    ARR is dependent on several components:

  • URL Rewrite

  • Web Farm Framework

  • External Cache module


    • Do not attempt to install this package directly due to this dependency. To install ARR and all its components in the appropriate order, use the Microsoft Web Platform Installer (http://www.microsoft.com/web/downloads/platform.aspx) and search for ARR within it. Alternatively, read the following blog post for instructions on installing ARR manually: http://blogs.technet.com/b/erezs_iis_blog/archive/2013/11/27/installing-arr-manually-without-webpi.aspx

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