Ok, maybe I understand what's the confusion is all about:
- The update utility from TFDI is called "Addon Manager" too, and by default, it installs here:
C:\Program Files (x86)\TFDi Design\Addon Manager\
- Our software, by default, installs here:
C:\Program Files (x86)\Addon Manager\
So, maybe, you might have mixed up the two, and pointing one installer in the location of the other one.