in a new type of dell notebook .. bios file in the form. exe
is there any suggestions or ways or tools to extract the file

Yes:
Universal Extractor

phoenixtool250 - to decrypt dump

read:
http://forums.mydigitallife.info/thread ... d-requests

on many dell
DELLBIOS.exe -writeromfile
or -writehexfile
or -writehdrfile

still cannot extract the bios file

use DELLBIOS.exe -writeromfile for bios file is diffrent with bios hex in chip and the bios size

here

V1450A04.EXE /writeromfile

v1450a04.rom 4 194 304 bytes

ftp://ftp.dell.com/Pages/Drivers/inspir ... .html#BIOS
copy file - 3721A06.exe
in Total Commander right-click UniExtract to folder
...no problem

Это далеко не со всеми прокатывает - на что и жалуется ТС )
Собственно извлечение с ключом тоже, так что автор зря надеется найти единый универсальный метод

at the command line I have so ...

agree)

still can't extract file

extract in command line - no problem
as I said
V1450A04.EXE /writeromfile
it`s not universal method so don`t expect to use it always

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