I have a valid 3-year code-signing digital certificate recently issued by Symantec.  The trouble I'm having is, when I sign my Word macro template (*.dot) with this cert, Word 2007 deems the signature to be invalid.

Word 2007's "Microsoft Office Security Options" dialog says "This digital signature is invalid and cannot be trusted", with no option to trust the publisher.  This is not the case in Word 2010.

This is from the same *.dot macro template on both PCs.

Does anyone know of versioning issues regarding the signature validation between Word 2007 and later Word versions? Could it be related to the deprecation of SHA1?

I've already tried the hotfix available from https://support.microsoft.com/en-us/kb/967732, with no success.  The version of Word 2007 in question is 12.0.6700.5000.

I would greatly appreciate any help.

Hi Clint,

Thanks for posting on MSDN forum.

This forum is for developers discussing developing issue involve Word product. Since the issue is more relative to end-user, I would like to move it to Technet forums - Word IT Pro Discussions - Microsoft to get more effective response.

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us.

Thanks for your understanding.

Regards & Fei