Some of the above XCOPY switches will not work in pure DOS session and LFNs (long filenames) will not be copied accurately to your target hard drive.
This is a discussion in the Win98-L mailing list, 3 years back:
"On Tue, 27 Jul 1999 06:10:29 -0700, newmail <newmail@snail-mail.net> wrote:
>...