macropod,

There are two COM Add-in among other things, one is "BCL easypDF 6 COM Add-in" and "Nitro".
I looked on the STARTUP folder you indicated -but its empty.
However, I found .dotm, .ppam and .xlam add-in's in the following folder path:
C:\Program Files\Microsoft Office\Office12\STARTUP
but even when I rename them or move/delete, they get restored back to that forlder everytime I open word, and get the error notifications.