shetty_rohan
Posts: 363
Joined: Fri Dec 07, 2012 5:28 am
Location: Bangalore, India
Contact:  Website

"Unknown Publisher" problem

Fri Jan 25, 2013 4:55 am

Hi,

When the user tries to install our product they get an error saying "Unknown Publisher". I guess this is coming because the setup is not signed. I also know that AdvacedInstaller already provides the "signing" support.

I would need your guidance on the same, and would appreciate your help.

I've found this http://social.technet.microsoft.com/wik ... 2-a-d.aspx where Microsoft informs about the registered Certificate Authorities.
Then I've found a lot of offers with widely differing prices:
• Symantechttps://products.websecurity.symantec.c ... ypeInfo.do. This is the by far most expensive and it is only for signing Microsoft Apps (no Java, no Mac).
• Thawtehttp://www.thawte.com/code-signing/index.html. Less expensive, also usable for Office (no Java, no Mac)
• KSoftware (Comodo reseller)http://codesigning.ksoftware.net/. They offer a universally usable certificate for a low price. This is so cheap compared to the others that I'm a bit suspicious. But, alas, they (Comodo) are on Microsoft's list.
• DigiCerthttp://www.digicert.com/code-signing/. Price is a bit under that of Thawte.
• There are even more...

I am a bit confused. How can the same product be offered in the same market at so differing prices without starving all competitors but the cheapest?
Anyway, two questions:
• Do you know whether the (even more expensive) Extended Validation (EV) certificate is mandatory for Windows 8?
• Have you any reasonable input for me to help decide where to buy and what?

Bogdan
Posts: 2791
Joined: Tue Jul 07, 2009 7:34 am
Contact:  Website

Re: "Unknown Publisher" problem

Fri Jan 25, 2013 1:55 pm

Hi,
I guess this is coming because the setup is not signed.
That is correct. And also, even if the package is signed, you must make sure the field "Description" from Digital Signature page is filled in, i.e. not empty.

1) Not that I know of, we haven't changed our certificate for Advanced Installer and it works correctly on Windows 8, so I doubt it is required.

2) I can't recommend a specific one, but I can confirm that we have used Thawte for quite some time without any problems.

Best regards,
Bogdan
Bogdan Mitrache - Advanced Installer Team
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shetty_rohan
Posts: 363
Joined: Fri Dec 07, 2012 5:28 am
Location: Bangalore, India
Contact:  Website

Re: "Unknown Publisher" problem

Wed Jan 30, 2013 5:17 am

Thanks for your answer.

Catalin
Posts: 6537
Joined: Wed Jun 13, 2018 7:49 am

Re: "Unknown Publisher" problem

Mon Oct 10, 2022 10:43 am

Hello and welcome to our forums,

Thank you for the information provided.

I am sure our customers will find this useful.

Best regards,
Catalin
Catalin Gheorghe - Advanced Installer Team
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