Update 4.0.3 Beta for Microsoft .NET Framework 4 – Runtime Update (KB2599651)

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This is Update 4.0.3 Beta for Microsoft .NET Framework 4 containing a set of new features addressing top customer feature requests and important .NET Framework scenarios.
  • Details

    Note: There are multiple files available for this download. Once you click on the “Download” button, you will be prompted to select the files you need.
    Date Published:



    File name:
    File size:


    48.0 MB


    54.5 MB

    KB Articles: KB2599651
      Update 4.0.3 Beta for Microsoft .NET Framework 4 package contains updated runtime files. For further details about the contents of this Runtime Update please refer to the Knowledge Base Article KB2599651.

      After you install this update, you may have to restart your computer.
  • System Requirements

    Supported Operating System

    Windows 7, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP

  • Install Instructions

      1. Click the Download button on this page to start the download, or select a different language from the Change language drop-down list and click Change.
      2. Do one of the following:
        • To start the installation immediately, click Run.
        • To save the download to your computer for installation at a later time, click Save.
        • To cancel the installation, click Cancel.
  • Additional Information

      Please see the Knowledge Base Article KB2599651 for more information.
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