> DOS 32 bit with LFN support through VMM32.VXD, Another semi-random hint/idea
jaclaz
post Jun 7 2007, 02:08 PM
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In my wanderings on the net, I found this (oldish) Italian site:
http://nipsala.altervista.org/superwin.html
reporting an article published in PcWorld 02/1999.

The interesting part (in the context of making a RAM only Win9x, by installing it on a HD partition and then copying it to RAMDISK XMSDSK.EXE) is, roughly translated, the following:
QUOTE
...
in this experiment, Windows 95 - FIRST release .... as using 95B (OSR2) and Windows 98 we had unsolvable problems in booting ...
....
To be able to copy to RAMdisk the files inclufding Long File Names a 32 bit DOS needs to be used, to build such do the following:
Create a directory C:\TOOLS
then:
cd c:\ramwin\windows\system

copy vmm32.vxd c:\tools\vmm32.exe

copy ..\command.com c:\tools\krnl386.exe

xcopy iosubsys\*.* c:\tools\iosubsys\

copy ..\system.ini c:\tools

copy ..\command\attrib.exe c:\tools

this is enough to be able to later start with the command VMM32.EXE a version of DOS supporting Long File Names, it is better to delete ALL drivers from the [386enh] section of the SYSTEM.INI copy in C:\TOOLS to avoid error messagfes when booting this DOS.

Now you can make in C:\TOOLS a file WINSTART.BAT that will be automatically executed.....
...containing first thing an
ATTRIB /S-R-S-H C:\RAMWIN\*.*
and COPY commands for each file to be copied, as in this DOS only INTERNAL commands
support LFN....


I was able to locate, on a German site that appears to have now vanished - or more exacty redirected to a page where a house is advertised for sale:
http://webwi.de/data/winos.htm
through some clever wink.gif tricks with googlecache:
http://209.85.135.104/search?q=cache:bUNXj...htm&strip=1
a very similar text and instructions.

Anyone has more details on HOW and WHY this works?

And also WHY it only works with Win95 first release files?

If there is a way to use Win95B and/or Win98 (read FAT32) such an idea could be useful for some project.

jaclaz
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jaclaz
post Oct 9 2007, 09:13 AM
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Nice find!

I do not have a ME to try it though. sad.gif

If I am allowed some hypothesis on the author of the article, however, he must be a genius of marketing (bolding is mine):
QUOTE
Windows ME can be even more further reduced to only 205kB with CLI. To do this, following files are required:


C:\IO.SYS - copied from bootable floppy image embedded in Windows ME OEM bootable CD
C:\MSDOS.SYS - content listed separately
C:\COMMAND.COM - modification listed separately

msdos.sys file must have minimal content such as:


[options]
disablelog=1
systemreg=0

command.com file must have minimal one-byte modification such as:


at hex offset 00006510 byte 75 is replaced by byte EB

To make booting procedure working, IO.SYS should be copied as first ever file to freshly formatted disk.


I would have written the above as:
QUOTE
Get a ME bootdisk and boot from it.
To install to hard disk, just run a:\Format C: /S and edit command.com and msdos.sys as detailed.

roll1.gif

cheers.gif

jaclaz
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Posts in this topic
jaclaz   DOS 32 bit with LFN support through VMM32.VXD   Jun 7 2007, 02:08 PM
ispy   Hi Jaclaz, Major bump I know, but here is some st...   Sep 18 2007, 05:43 PM
ispy   Hi again Jaclaz, You may also find the info conta...   Sep 18 2007, 10:06 PM
specter_57   ...and this I stumbled across on the net somewhere...   Sep 19 2007, 04:39 AM
ispy   Hi all, Just trying to help, here is a link to th...   Sep 19 2007, 09:03 AM
MedEvil   If you slimed the original DOS32 further down and ...   Sep 19 2007, 10:38 AM
ispy   Hi MedEvil, Yes, the only problem is I did this a...   Sep 19 2007, 11:40 AM
MedEvil   No need to haste and break a leg. ;) It just would...   Sep 19 2007, 12:56 PM
ispy   Hi MedEvil again, Will get right on it (Sorry hob...   Sep 19 2007, 01:14 PM
ispy   Hi MedEvil & all, :thumbup: As Requested the...   Sep 20 2007, 03:58 PM
MedEvil   Thanks for your work, especialy since you're h...   Sep 20 2007, 04:43 PM
jaclaz   I have the feeling that something can come out of ...   Sep 20 2007, 07:31 PM
ispy   Hi all again, :thumbup: Thanks for all the posit...   Sep 20 2007, 08:41 PM
ispy   Just to keep you updated, Will be on hols from 19...   Sep 21 2007, 10:53 PM
ispy   Hello all again :thumbsup: , On the mini 9x fron...   Oct 8 2007, 09:24 PM
jaclaz   Nice find! I do not have a ME to try it thou...   Oct 9 2007, 09:13 AM

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