I develop an add-in for excel and I have an verysign certificate class 3 code signing and I sign the clickone manifiest with this certificate but when I try to install the add-in by clickonce in some computers say
that is not a trusted developer but in other computers show this message when I try to install
System.Deployment.Application.InvalidDeploymentException: Exception reading manifest from file:///C:/Users/User/AppData/Roaming/Your%20Company/Your%20Application/ourUSB.ExcelAddin.vsto:
the manifest may not be valid or the file could not be opened.
How I sign the certificate for install the add-in without error?
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