Hi Mario,
My experience which clearly may not match is that dell drivers may anticipate that you are running DOS under windows itself. if the information does not specify which editions of Dos, perhaps? write to their well staffed support discussion list outlining your problem, and asking for which editions of Dos the driver was written. Has been a few years, but my memory is that their support team really contributes to their support discussion lists.
We got dell related work-arounds that way.
Much success,
Karen



On Tue, 16 Jan 2018, Mario Menezes wrote:

Hi,

@Karen

 Yes, the bios update file is stated for Windows/DOS; this is a paste from
Dell site:

"Description: This package provides the Dell System BIOS Update and is
supported on Dell Inspiron Notebook 7520 for Windows and DOS Operating
Systems."

@Christian

 I've tried almost every pointed solution in those links, but none of them
mentioned the TEMP trick that Jim gave above. I might give it a try before
going to Windows PE.

 Thanks you all for your attention and help.

 Best regards



--
*Mario O.de Menezes, Ph.D.*
"Many are the plans in a man's heart, but is the Lord's purpose that
prevails" Pv 19.21
http://www.momenezes.com     -    LinuxUser: #24626



2018-01-16 15:02 GMT-02:00 Karen Lewellen <klewel...@shellworld.net>:

Hi Mario,
I do not run freedos, but ms dos 7 ish.  However, I did spend some time a
while  back working with this line, not specific model, of dell machines.
A few questions.
This bios update file is indeed specifically for dos?
meaning  Dell specifically states  on the download page where you found
the file  that it works in DOS,  including the  editions of DOS?
 Karen


On Tue, 16 Jan 2018, Mario Menezes wrote:

I really appreciate your help, Tom.


--
*Mario O.de Menezes, Ph.D.*

"Many are the plans in a man's heart, but is the Lord's purpose that
prevails" Pv 19.21
http://www.momenezes.com     -    LinuxUser: #24626



2018-01-16 12:25 GMT-02:00 Tom Ehlert <t...@drivesnapshot.de>:

Hi,



  I'm trying to run a Dell bios update file for my Inspiron 7520.
  I've created the FreeDOS usb stick, copy the bios update file to
it, can boot into it, return to DOS Prompt without installing, but
when I try to run the exe file all I get is (reproducing the FreeDOS

screen below):


C:\>>7520A09.exe

Test.

C:\>>_


  Nothing else happens!



  What else should I do in order to run this executable?


if you have trouble running a DELL executable, you should ask DELL
support.

Tom


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