The reason for the why you got the Queue Manager is that Poser comes as a single install. All the parts of Poser are in the install and the serial number determines what features you have access to. This saves from having two different packages which could get out of sync and creating a lot of helpdesk complaints.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13