msiehelp.exe is a Trojan.Iyus-P. msiehelp.exe monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\msiehelp.exe More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill msiehelp.exe process and remove msiehelp.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.