Analysis of information sources in references of the Wikipedia article "COMMAND.COM" in Portuguese language version.
CMD.EXE is the Windows NT command line interface, its NOT a DOS window. COMMAND.COM is a 16-bit DOS application which is used for older DOS compatibility and actually runs inside the NTVDM (NT Virtual DOS Machine) due to its 16-bit nature.
COMMAND.COM is the default shell for Microsoft operating systems, including MS-DOS and Windows versions up through Windows ME.