Some industrial antivirus suites (like McAfee or Symantec) quarantine mlg.exe because it attempts low-level COM port access.
The mlg.exe file is not a standard Windows system file (like kernel32.dll ). It is a third-party executable. Based on software archives and technical documentation, mlg.exe typically falls into :
Because "MLG.exe" is a generic name used by many different independent creators,
Based on historical telemetry regarding generic/nonspecific executable names like this, mlg.exe is frequently associated with the following: