Again, I was there. No. Microsoft stopped updating MS-DOS 6.0 at 6.2.2. I never saw DOS 6.3 ( There was a PC-DOS 6.3, which I think was unchanged except for "Di

Again, I was there. No. Microsoft stopped updating MS-DOS 6.0 at 6.2.2. I never saw DOS 6.3 ( There was a PC-DOS 6.3, which I think was unchanged except for "Disk Compression" . Next thing was the DOS 7.0 used to boot Windows 95 FE.