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Editorial Team
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Asked: 2026-05-26T08:50:50+00:00

I created s set up project using this link . The addin was not

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I created s set up project using this link.

The addin was not getting installed. When I tried to add it through add ins in excel it said "xxx is not a valid office addin".

This error is because the dll is not strong named and not in GAC. So I enabled adding the dll in GAC in the set up project using this link

I am still not able to see the add in when I run the set up. and when I forcibly tried to add it, got the same error.

Any idea whats going wrong?
Thanks in advance!

Update: Added the registry entry in the deployment project

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1 Answer

  1. Editorial Team

    FInally used clickonce to create the build!!

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