On September 14, 2000, Microsoft released Windows ME, the last version of Windows to rely on MS-DOS. It was intended as a successor to Windows 95, 98, and 98 SE, offering discounted updates and compatibility with existing software. Windows ME obscured DOS, making it less accessible for users, and eliminated the ability to create bootable DOS copies from formatted floppy disks. It inherited system file protection from Windows 2000 to prevent "DLL hell," where application software replaced system libraries, causing other programs to fail. Windows ME aimed to bridge the gap between Windows 98 and Windows XP, but users faced compatibility issues with programs not designed for the new version. The control panel adopted a web-like appearance, and documentation transitioned to HTML format. Windows ME had minimal system requirements of a 150 MHz Pentium and 32 MB of RAM, and performance tests showed negligible differences compared to Windows 2000. Windows XP was released a year later, marking the end of DOS's relevance in Microsoft's operating systems.