Hi, how many computers do you have behind your router ? Basically, the application shows first your router and your PC, these 2 can't be spoofed / blocked or capped, only others computers on your network can. If you have many computers not shown in the list, try the first button "arp discovery". For the netsend option it might be implemented but it is not a priority since this service is usually disabled by default on windows. Thanks. Ben