Fox25

My friend was banned by PBbans for having the .dll file above. He didnt know where he got it from and it was found in : "C":/Program files/ Activision/call of duty 4/ pb/ The punkbuster folder. I dont know how to help him any suggestions. I need to get him un banned fast. Please Help! Is deleting it ok or do i need to tell him something else He is upset because he is the only one using the computer and he didnt know where it came from