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"Unknown publisher" message upon expired certification in MSI installation? RRS feed

  • Question

  • Hi,

    I have a VSTO Outlook addin.
    The installation is done with MSI.

    Once the certificate expired, the users get "unknown publisher" message when loading Outlook.
    Why?? It's not a clickonce installation. 
    Does VSTO checks the certificate each time a VSTO addin is loading?
    (The manifest key in the registry is like: File:///C:/........./<addinname>.vsto|vstolocal)

    Apart from why it's happening, what are the possible approaches to solve it?

    Thanks!

    Wednesday, November 13, 2013 9:10 AM

Answers