P2P means Peer to Peer. Such as Limewire or Frostwire.
Since you already asked for help, we'll remove any un-needed or dangerous programs when going through the malware removal stages.
http://www.geekpolice.net/virus-spyware-malware-removal-f11/explorer-opens-on-its-on-google-searches-go-to-ads-malware-doctor-has-shown-up-t9634.htm