Msinet.exe is a Trojan W32.Rbot-AOA. Msinet.exe opens a back door on IRC channel. Msinet.exe tries to terminate antiviral programs installed on a user computer. Msinet.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\Msinet.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill Msinet.exe process and remove Msinet.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.