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    Update 4.0.3 for Microsoft .NET Framework 4 – Runtime Update (KB2600211)

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


      File Name:




      Date Published:


      File Size:

      73.0 MB

      42.4 MB

      67.1 MB

      KB Articles: KB2600211

        Update 4.0.3 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 KB2600211.

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

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

        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.
      • Please see the Knowledge Base Article KB2600211 for more information.