The Add-in "Enterprise Vault" cannot be loaded and has been disabled by Outlook

Hi,

I'm seeing the above issue on a client PC.  For reference, I've already been through this forum post and this KB article, but neither helped.  Here are the quick-fire reference items:

• ESM is not installed
• The issue happens only on this PC
• The issue happens on all profiles on the PC
• The issue does not happen with the same user on a known good PC
• Already tried to reinstall the add-on
• Already tried actions described in scenario 2 and 3 from the above KB article (1 and 4 not applicable)

Short taking off and nuking the PC from orbit I am unsure what steps to next take to resolve the issue.  Any support would be appreciated!

• Windows 7 32-bit
• Outlook 2007 SP3
• Symantec Enterprise Vault Outlook Add-In 10.0.4.1293

Regards,

Robert