i think we must have a look at this onceLancast: saves bandwidth and increases download speeds in dual network capacity environments (your PC is on the internet, but also on a LAN with other eMule clients). Your client will discover other local/LAN sources and will upload to these clients above your client's normal upload limits, using multi-cast. Useful for people who share an Internet connection with other eMule Plus users (student networks, home networks and Metropolitan Area networks as long as they support multi-cast data).option is available in new eMule Plus 1.1bgive it a try