Main.exe is a Adware.2search. Main.exe monitors user Internet activity. Related files: C:\Program Files\2Search\getst.exe C:\Program Files\2Search\main.exe C:\Program Files\2Search\plugin.dll C:\Program Files\2Search\svchost.exe %System%\007guard.exe %System%\2searchinstaller.exe More info: http://securityresponse.symantec.com/avc... Removal: Kill main.exe process and remove main.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.