Windows 10: Can't install vsto

Discus and support Can't install vsto in Windows 10 Software and Apps to solve the problem; Can't install vsto windows 7 embedded https://answers.microsoft.com/en-us/windows/forum/all/cant-install-vsto/a8ee2e1b-57b7-402a-9634-d77a7b4fbb20 Discussion in 'Windows 10 Software and Apps' started by Toby ng_614, Jun 22, 2025 at 5:22 PM.

  1. Can't install vsto


    Can't install vsto windows 7 embedded

    :)
     

  2. Open .vsto from IE11

    Hi Jeanie,



    VSTO is an add-in that is usually used by developers. For queries relating to VSTO, it would be best handled by MSDN forum. Were you able to post your query there? If not, we suggest

    creating a new thread on MSDN
    . They’ll be able to walk you through the process and provide you steps on resolving your concern if any issues arise.



    If you have other queries, feel free to ask us.
     
  3. VSTO addin for excel

    Hi,

    I have developed a VSTO addin for excel. I understand that Visual studio tools for office runtime should be installed in a workstation in order for the addin to work. and i need to install the addin using a service. So inorder for this to happen, VSTO should
    be installed at first. So can i bundle the vstor_redist.exe and the VSTO excel addin in my application. Or what is the best way to do so? Because if i am installing the addin using a windows service i have to install it using "vstoinstaller.exe /install Setup.exe
    /silent" command. So i need vsto runtime to be installed first.
     
  4. jeanie77 Win User

    Can't install vsto

    Open .vsto from IE11

    I would like to install a VSTO Office Add-in by opening the deployment manifest from an IIS website, as explained

    here
    .

    I'm currently using IE11 on a Windows 10 pc.

    The install process fails, because IE11 doesn't give the option to directly open .vsto file: it only allows to save and then open. In this way, paths to manifest and other resources gets invalid, since they aren't referred to the original http url, but relative
    to the Download folder.

    Switching to Edge does solve the issue: the file is opened from the original location and the required files are correctly downloaded and installed.

    How can I configure IE11 to Open .vsto file instead of Save? I noticed that 'Open' is not even an option, how to unhide this menu item?
     
Thema:

Can't install vsto

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