Question about Scanned Softwares

Hi,

The servicedesk plus have a option in Software Topics that have all scanned softwares in computer.

My question is about the software licensing. Please follow the situation:

This software "7-zip 9.20 (x64 edition)" is classified as Freeware but it's reported like Under Licensed.

Question:

1) All softwares must have the license registered in "Software Licenses tab"?
(Excluded / Freeware / Managed / Prohibited / Shareware / UnIdentified)

Example: The software 7-zip 9.20 (x64 edition) is installed in 137 machines, the solution is add an license of this software to compare with the quantitity of installed softwares and not alert?

2) When I add a new software license (Software License tab), the option below (positive symbol)

The list with name "Unmanaged Software List" is showed to add manually and change to Manage software.
Where can I find this software listing and how can i change/add softwares? In this listing some scanned softwares are showed, but not all.

Thanks,

Regards,
Lincon Ruam