Hello
Basically CWS-MCF-PROED-CX is for a single user license. The license is then bound on a Ethernet or Disk ID and can only be used on one single Host PC.
CWS-MCF-PROED-LX is a floating license. The license is bound to a license server and a programmer, who wants to use the tools checks the license out and use it for a while.
So CWS-MCF-PROED-LX is more expensive as it allows you to have several people using the tools (as long as they do not use it at the same time).
I hope this helps.
CrasyCat