If there is another computer on the network that does have a CD drive, put the MainBoss CD into that drive and "share" the drive so that it can be accessed by other computers on the network. (See the documentation for your network software to see how to share a drive.) Once the CD drive has been shared in this way, the workstation can access the CD and install MainBoss.
Note that you must still go through the usual process of installing MainBoss on the workstation. The workstation cannot just access the MainBoss software directly from another machine.