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On DOS LFN support

Posted By: Mathias Winkler <>
Date: Monday, 4 January 1999, at 7:48 p.m.

In Response To: New to group! One or two questions (Mike)

> Well I didn't think XTG was so popular!

It *is* still very popular! ;-)

> I have yet to try Ztree, but was dissapointed to read that
> it will not work in DOS. I wonder if there is going to be any improvement
> on that - or is there an alternative file manager program that will
> see long file names from a dos prompt?

Well, it's not ZTree to blame, but the DOS concept itself;
MS DOS as a 16bit operating system will never be able to read Long File
Names (LFN) being created by a 32bit operating system like Windows9x/NT !!

Note that the MS DOS 7.0 system *can* handle long file names, but *solely* if
run as a "DOS-box" under the Win9x GUI, and *not* if run just in DOS mode
(without starting the GUI)!

However, there are efforts to supply DOS-compatible 32bit text-mode
operating systems, which then would be able to deal with Long File Names,
refer to, for example, the "DOS32" project (,
or Caldera's very promising DR DOS 7.02 system, with a beta-state update for
LFN support (see link below).
On the other hand, there's yet no filemanager available for these systems,
because that would require a complete re-writing of the program code, so
it may take a while until such utilities will be available.

I am about to test DR DOS 7.02 soon, and see how/if the LFN support from the
command line works; I will report it to the forum.

Kind regards
Mathias Winkler - XTFP

>Caldera DR DOS

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