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Message-ID:	<01FD6EC775C6D4119CDF0090273F74A455A914@emwatent02.meters.com.au>
From:	"da Silva, Joe" <Joe DOT daSilva AT emailmetering DOT com>
To:	"'opendos AT delorie DOT com'" <opendos AT delorie DOT com>
Subject:	RE: Bugs in DR-DOS 7.03
Date:	Tue, 15 Jan 2002 10:40:14 +1100
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I know that M$ says you can't disable this cr*p entirely, but I
wonder ... what if you have a registry key for NoVolTrack that
looks for a single byte $EB at offset 0, which should "do the
trick" for all modern DOS formats, and another for the byte
$E9, for earlier DOS formats?

I haven't tried this yet, since I'm not confident at messing
around with the registry at this time ...

Joe.

> -----Original Message-----
> From:	Matthias Paul [SMTP:Matthias DOT Paul AT post DOT rwth-aachen DOT de]
> Sent:	Monday, January 14, 2002 11:51 PM
> To:	opendos AT delorie DOT com
> Subject:	Re: Bugs in DR-DOS 7.03
> 
> On 2002-01-13, Andreas Kaestner wrote:
> 
> > See:
> > 
> > What's NOT a Virus
> > http://www.bocklabs.wisc.edu/~janda/notvirus.html (section 2.2)
> > 
> > Windows 95/98 Overwrites Boot-Sector Field on Floppy Disks (Q148637)
> > http://support.microsoft.com/default.aspx?scid=kb;EN-US;q148637
> > 
> > Understanding Disk Volume Tracking in Windows 95 (Q150582)
> > http://support.microsoft.com/default.aspx?scid=kb;EN-US;q150582
> > 
> > Windows 95/98 überschreibt Felder von Disketten-Bootsektoren
> > http://www.winfaq.de/faq_html/tip1242.htm
> 
> Thanks, Andreas, that´s wonderful! :-) One more mystery is solved.
> 
> It´s unbelievable, Microsoft is doing all this mess for something
> as trivial as keeping track of disk changes. I wonder why we already
> have volume labels, disk serial numbers, floppy drives with change
> line support, or alternatively a two-second timeout after the last
> access. This should be more than enough to keep track of disk changes
> in practise...
> 
> Unfortunately, there appears to be no way to completely disable
> this "feature" in Windows 95+, but it is possible to define an
> exclude list by adding binary keys to the registry under
> 
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem\NoVolTrack
> 
> To keep Windows 95+ from modifying any DR DOS disks, one should add the
> following OEM labels to the list:
> 
> "DIGITAL "  DOS Plus 1.2;
>             DR DOS 3.31 - 5.0 "Leopard" Beta 3
> "IBM  3.3"  DR DOS 5.0 - 6.0;
>             Novell DOS 7, OpenDOS 7.01, DR-OpenDOS 7.02, DR-DOS 7.02 FDISK
> "NWDOS7.0"  Novell DOS 7 FORMAT & SYS
> "OPENDOS7"  OpenDOS 7.01 FORMAT & SYS
> "DRDOS702"  DR-OpenDOS 7.02 FORMAT & SYS
> "DRDOS  7"  DR-DOS 7.02 FORMAT & SYS;
>             DR-DOS 7.03
> "DRDOS7.X"  DR-DOS 7.02 - 7.03 FDISK (FAT32 only)
> 
> For your convenience I have created a file IHC.REG containing a number
> of OEM strings as Windows registry keys. If you know of *any* other OEM
> strings used on some pre-formatted floppies, with some formatters, or
> other operating systems, please let me know - I´m collecting this stuff
> for RBIL anyway.
> 
> Although the IHC.REG file is very small I don´t use MIME attachment,
> because for good reasons .REG files may be blocked out by some virus
> filters. Furthermore, not everyone wants to import the whole list of
> OEM labels which should be excluded from Windows new volume tracking
> method. It is probably a good idea to edit the file anyway. Make sure
> there´s one line per key (that is remove the line wrapping).
> 
> The first six keys should already be present in your registry, otherwise
> you should add them. You will only need to import the OEM labels which
> I have listed above, the rest is optional.
> 
> IHC.REG:
> 
> |REGEDIT4
> |
> |[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem\NoVolTrac
> k]
> |"STAC disk"             =hex:1F,00,CD,13,CD,14,CD,01,CD,03 ;
> |"DAK acct disk"         =hex:03,00,50,56,42,41,43,4B,55,50 ; "PVBACKUP"
> |"IBM thinkpad disk"     =hex:03,00,49,42,4D,20,35,20,33,79 ; "IBM 5 3y"
> |"ROMPAQ flash disk"     =hex:03,00,4D,53,44,4F,53,35,33,79 ; "MSDOS53y"
> |"ROMPAQ diag disk"      =hex:03,00,4D,53,44,4F,53,35,33,7A ; "MSDOS53z"
> |"IBM flash disk"        =hex:03,00,49,42,4D,20,35,20,33,66 ; "IBM 5 3f"
> |"MS-DOS 2.0 disk"       =hex:03,00,4D,53,44,4F,53,32,2E,30 ; "MSDOS2.0"
> MS-DOS 2.??
> |"MS-DOS 3.1 disk"       =hex:03,00,4D,53,44,4F,53,33,2E,31 ; "MSDOS3.1"
> MS-DOS 3.1
> |"MS-DOS 3.3 disk"       =hex:03,00,4D,53,44,4F,53,33,2E,33 ; "MSDOS3.3"
> MS-DOS 3.3
> |"MS-DOS 4.0 disk"       =hex:03,00,4D,53,44,4F,53,34,2E,30 ; "MSDOS4.0"
> MS-DOS 4.01
> |"MS-DOS 5.0 disk"       =hex:03,00,4D,53,44,4F,53,35,2E,30 ; "MSDOS5.0"
> MS-DOS 5.0 - 6.22
> |"MS-DOS 7.0 disk"       =hex:03,00,4D,53,57,49,4E,34,2E,30 ; "MSWIN4.0"
> Windows 95
> |"MS-DOS 7.1 disk"       =hex:03,00,4D,53,57,49,4E,34,2E,31 ; "MSWIN4.1"
> Windows 95 OSR 2 - Windows 98 SE
> |"PC DOS 3.1 disk"       =hex:03,00,49,42,4D,20,20,33,2E,31 ; "IBM  3.1"
> PC DOS 3.1
> |"PC DOS 3.2 disk"       =hex:03,00,49,42,4D,20,20,33,2E,32 ; "IBM  3.2"
> PC DOS 3.2
> |"PC DOS 3.3 disk"       =hex:03,00,49,42,4D,20,20,33,2E,33 ; "IBM  3.3"
> PC DOS 3.3; DR DOS 5.0 - 6.0; Novell DOS 7, OpenDOS 7.01, DR-OpenDOS 7.02,
> DR-DOS 7.02 FDISK
> |"PC DOS 5.0 disk"       =hex:03,00,49,42,4D,20,20,35,2E,30 ; "IBM  5.0"
> PC DOS 5.0; Compaq MS-DOS 5.0
> |"PC DOS 6.1 disk"       =hex:03,00,49,42,4D,20,20,36,2E,30 ; "IBM  6.0"
> PC DOS 6.1
> |"PC DOS 7 disk"         =hex:03,00,49,42,4D,20,20,37,2E,30 ; "IBM  7.0"
> PC DOS 7, PC DOS 2000
> |"DR DOS 3 disk"         =hex:03,00,44,49,47,49,54,41,4C,20 ; "DIGITAL "
> DOS Plus 1.2, DR DOS 3.31 - 5.0 "Leopard" Beta 3
> |"Novell DOS 7 disk"     =hex:03,00,4E,57,44,4F,53,37,2E,30 ; "NWDOS7.0"
> Novell DOS 7 FORMAT & SYS
> |"OpenDOS 7.01 disk"     =hex:03,00,4F,50,45,4E,44,4F,53,37 ; "OPENDOS7"
> OpenDOS 7.01 FORMAT & SYS
> |"DR-OpenDOS 7.02 disk"  =hex:03,00,44,52,44,4F,53,37,30,32 ; "DRDOS702"
> DR-OpenDOS 7.02 FORMAT & SYS
> |"DR-DOS 7.02 disk"      =hex:03,00,44,52,44,4F,53,20,20,37 ; "DRDOS  7"
> DR-DOS 7.02 FORMAT & SYS; DR-DOS 7.03
> |"DR-DOS 7.02 FAT32 disk"=hex:03,00,44,52,44,4F,53,37,2E,58 ; "DRDOS7.X"
> DR-DOS 7.02-7.03 FDISK/FAT32
> |"PTS-DOS 7.0 disk"      =hex:03,00,50,54,53,44,4F,53,37,30 ; "PTSDOS70"
> PhysTechSoft's PTS-DOS 7 BETA 1 (1995)
> |"RxDOS 6.0 disk"        =hex:03,00,52,78,44,4F,53,36,2E,30 ; "RxDOS6.0"
> RxDOS 6.0
> |"RxDOS 7.2 disk"        =hex:03,00,52,78,44,4F,53,37,2E,32 ; "RxDOS7.2"
> RxDOS 7.2
> |"FreeDOS disk"          =hex:03,00,46,52,45,45,44,4F,53,20 ; "FREEDOS "
> FreeDOS (to be verified!)
> |"boeder disk"           =hex:03,00,20,52,50,53,20,35,2E,30 ; " RPS 5.0"
> boeder pre-formated floppy disks
> 
> 
> Hope it helps,
> 
>  Matthias
> 
> -- 
> 
> <mailto:Matthias DOT Paul AT post DOT rwth-aachen DOT de>; <mailto:mpaul AT drdos DOT org>
> http://www.uni-bonn.de/~uzs180/mpdokeng.html; http://mpaul.drdos.org
> 

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