IEToolBar.dll is an adware program Adware.MBKWbar. IEToolBar.dll displays advertisements. Related files: %ProgramFiles%\MBKWBar\IEToolBar.dll More info: http://securityresponse.symantec.com/avc... Removal: Remove IEToolBar.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.