Thank you for your reply.
My problem is that I need Windows scan because it gather valuable data we use in other processes, but as our infrastructure contains other type of devices, or devices where we do not have system access (black boxes from suppliers) we also perform vCenter scans to gather (limited) information for these...
I would expect lansweeper, when scanning same machine with the two different methods, to detect that the MAC Adresses are the same and avoid creating two entries in its DB...