ClickOnce The publisher could not be verified. Are you sure you want to install this application.

Posted on 2009-02-19
Last Modified: 2013-11-26
How do I sing my application from Visual Studio to prevent the warning dialog:
The publisher could not be verified. Are you sure you want to install this application.?
Question by:Biotechs
    LVL 5

    Accepted Solution

    Apologise, but you will need a digital signature to attach to your program.

    if you google, digital signatures add visual studio.

    you may find your answer that way.

    Author Comment

    Does it has to be a certificate signed by a trusted authority?
    LVL 14

    Assisted Solution

    Jaymz_r is correct.  You will need a digital cert to sign the install file.    You can get this from verisign or other trusted Certificate Authorities.  Once you get the certificate, you would use Signcode.exe or some other app to sign the build.  This should resolve the issue of the publisher message.

    Author Comment

    Could you please tell me which one is the one I need to purchase:
    LVL 5

    Expert Comment


    choose the top one i believe.  Possibly email verisign and let them know of your plans.

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