CloudBerry Drive has two editions: a server or desktop. It is the one program with the different license types. The edition license you need is determined by the operating system you want to install CloudBerry Drive to.
Desktop edition can be only activated on desktop or workstation operating systems, the server license is for server OS.
With Server edition you can share drives that mapped as network drives into a local network. It allows access your drive as network share from any network computer.
To enable this feature you have to set mounting type to a "Network Mapped Drive" and check the box "Allow access from other computers via network share". For more information refer to product web page