Home license:
Allows the product to be used by 1 user on 1 computer. You cannot use the program to automatically install applications on other PCs.

Company license:
Allows the product to be used by not more than 5 users. You cannot use the program on more than 20 PCs.

Site license :
Allows the program to be used by an unlimited number of users in one certain location on an unlimited number of computers physically located in one certain LOCATION.
LOCATION usually means one building, but it can also mean several buildings geographically located in one place, for example, a factory or a small town.