(VSTO) Open .vsto from IE11 RRS feed

  • Question

  • Hello, I'm posting here this question as suggested in this IE forum. Sorry again, I couldn't find a suitable category and I chose the most similar...

    QUESTION - 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 access this feature again?

    Wednesday, June 28, 2017 8:54 AM