How to lift immunity LAN ARP attack

ARP attack while ago to install a local area network is installed, the immune packet.dll, pthreadVC.dll, wpcap.dll these three documents, and now I want to use p2p, but they could not open …how to do ah.Files have been deleted , but still can not! # -0 – # Bars or small local area ah? Internet cafes can use the soft route.Small local area networks can use the router's MAC address binding function inside.! Bound out of it! # -0 – # Step buttoned:Absolutely….one:to re-install, or click System Restore.2:re-start the Routing and cats.