Well, it would be good if LFNs are being preserved during copy operations.
Though on plain MS-DOS 7.1, there's no LFN support enabled by default, as far as I know.
Ok, strictly speaking, Windows 9x uses 8.3 (SFNs?) for the system files, but things like "Program Files" may end up as "PROGRA~1" after copying.
Also, not all of the third-party drivers and utilities do use 8.3 naming scheme.
So after copying them from command line, they might end up being shortened.
I know this from OS/2 Warp already, which was supposed to use 8.3 naming scheme for the system files. Unfortunately, it didn't.
It also stored long file names in hidden text files, which had to be updated each time (which DOS in a dual-boot scenario didn't do).
Edit: Copying from Windows command prompt is another story, of course.
But then there might be certain permission issues, if system files are being accessed from a live system.
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