Installing an add-in built with VS2013/ .NET4.5 on a machine that has .NET4.0 RRS feed

  • Question

  • Is it possible to install an Outlook 2013 add-in built with VS2013/ .NET4.5 on a machine that has .NET4.0? I get the following message when I try to run the install.exe : "Add-in requires the following items to be installed on your computer. Click install to begin installing these requirements." and it lists .NET Framework 4.5 Full as a req.

    I ask because this will be deployed to many users who all already have .NET4.0 on their machines.

    Tuesday, December 1, 2015 8:57 PM


  • Hi Luke,

    Thank you for posting in MSDN forum.

    You could install .NET Framework 4.5 which has .NET Framework 4.0.

    Here is the .NET Framework 4.5 download link:

    Here are some common install tips of .NET Framework installation:
    ·         Turn off your anti-virus/antispyware software during installation
    ·         Install the latest Windows updates from the Windows Update site
    ·         Complete or dismiss Windows Update before installation. (and don't forget to turn it on later)
    ·         If the installation fails, you can collect the setup log file and analyze them.

    You can follow below steps to collect log files:
    1.       Try to go to your "%temp%" folder (Start Menu >>Run >> Type "%temp%).
    2.       Manually filter the .net framework logs from "%temp%" folder .

    Please upload the file to and share the link here


    Best Regards,

    Wen Xu

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    Wednesday, December 2, 2015 8:15 AM