Switching off UAC will fix the issue. Specgen will run correctly.
The only thing that remains is that you still cannot edit the Shared Content Folder (this function still asks for admin rights)
We had this issue submitted to Autodesk by our CAD supplier.
set UAC off, set virus protection off and give everybody administrator rights and everything works
..but we think Autodesk should fix their certificate
No personal offend intended
Wouldn't that be great... for a while (until everything is infested)
I'm not an ICT guy, but our ICT department didn't make any trouble to switch UAC off. I don't exactly know what risks that may give. As far as I can see, there's nothing i can do more than before.
For setting the Shared Content Folder, I agree that giving the user admin rights isn't the solution. That's why we submitted the problem to Autodesk to fix it.
Until that time I have to ask an administrator to set it for me for every user.
Please note that this was adjusted with the Plant 3D 2013 Data Integrity Hotfix. Link below. Please check the readme.doc.