In a network (server|client) environment you must purchase a license copy for each separate client (workstation) on which RAR is installed, used, or accessed.

A separate license copy for each client (workstation) is needed regardless of whether the clients (workstations) will use RAR simultaneously or at different times. If for example you wish to have 9 different clients (workstations) in your network with access to RAR, you must purchase 9 license copies.