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wendy
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51 years old
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one mile from the QR main line
Born July-23-1957
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Operating systems, Weights and Measures, Geometry
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Country:: Australia
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wendy

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30 Aug 2008
I have been playing with a version of PC-DOS 7.1.32 (it's PC-DOS 7.1 from the sgtk 1.30.7).

It is modified DOS source, with a focus on setting up servers and blade machines. In any case, a cute trick is to add an extra 0-byte file to the diskette, in the shape of _BOOT_HD.NOZ . If ibmbio.com sees this, then it will offer to boot from the DVD/CD or from the hard disk, default to the hard disk.

It works on a regular floppy too, the DVD-CD thing will actually boot to the floppy, while the default is to the hard disk.

It has possibilities, and i imagine that jo.sys will do the same thing in Windows 98. The impact of this is that you can have a dos boot disk with the answer file etc on it, and start either dosmode or run mode without having to eject the diskette.
23 Aug 2008
I decided to make a "real" MS-DOS 7.10. There is already a version by Wengier + Roy, which is the MS-DOS kernel from Win98fe, with many utilities replaced and added. While it is true that one can manufacture an "uber-DOS" with the finest freeware, the attempt here is to make a DOS out of MS released stuff.

To this end, one takes the five versions of Win9x on hand, and compare the files. Since DOS is a module in Win9x, there is no reason that it is to be consistently updated for each version. In practice, some from Win95 remain in 95c, and most of 98fe appear in 98se. There is further two updates to DOS, as

1. http://support.microsoft.com/kb/263044 fdisk with disks > 64 GB
2. http://support.microsoft.com/kb/311561 winboot.sys = io.sys (corruption under DOS)

Although the second fix attempts to apply the winboot.sys to 98fe vs 98se differently, the files are indeed identical. So we can number these DOS versions as 7.10.0 (Win95c), 7.10.1 (Win98fe), 7.10.2 (Win98se), 7.10.3 (q311561). There is an interesting file by Tihily, one finds on MSFN by googling for IONOLOGO. This compares to 7.10.3, minus a large slab of code at the end, and minus the bitmap. It is about half the size of the original.

The vast bulk of stuff comes from Windows 98se. Scandisk is imported from Windows ME. We then get a few other utilities from the OLDMSDOS archives. These are MS-DOS 6.22 specific, but if ye take the original MS-DOS 6.22 files, and compare these with 6.21, you find that they are identical, except that the string 0x0616 is replaced by 0x0615. We then replace this by x070A, and these work nicely under this DOS.

DOSSHELL v 7 is the same as DOSSHELL 6, except 6 is changed to 7 in the help-about screen etc. So we can use this without modification. One notes that the program winfile.exe is short-name only, too. Memmaker and MsBackup round off this bit.

For extra additional files, we add compress (for DOS 6 stuff), expand (from Windows 3.11, which handles both SZDD and KWAJ formats), exetype (Winnt 3.51 utility: it's DOS), and where (MS, unknown source, DOS). A defanged Regedit is thrown in. We could put GWBASIC in for a lark, too.

Since also enough of PC-DOS 7.10 exists, we could dual-boot the two. The two together could use the same files! A modified version of BASICA.COM 3.40 for modern hardware exists, this can be added to this DOS release.

Note here, that while these closely follow IBM/Microsoft sources, neither of these develop DOS, and more recent files by others would be reccomended in a modern environment.


19 Aug 2008
Here is a cute trick i made work with Windows XP SP3. It's handy for creating source disks for projects for CD-based hard disks.

You can change the boot letter of Windows to anything, including a single partition of letter W:

CODE
1.  Run install (from bootable cdrom)
    * create a single partition
    * stop at the reboot stage
2.  Use a winpe to modify registry
     *  reg load HKLM\setup c:\windows\system32\config\system
     *  regedit:  navigate to HKLM\Setup\MountedDevices
    * Rename key "C:" to "W:"
    * exit registry
    * reg unload HKLM\Setup
3.  Let setup continue.


What lies in the image can now be configured for use in a real cdrom, for example. Here the gif shows WINXP SP3 in Virtual PC. This allocates a 16 GB drive to this OS, but i limited it to 4. Use things to gut this down to something more decent for your applications.

You can then do things like set up EWF and the Ramdisk from 2003 SP1 to do nice things (like load to ram). Still, it's a start.

W
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29 Mar 2008
Someone had to do it.

NTOS2 3.x




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29 Mar 2008
I began work on Windows 3.51 + SP5 composite.

The plan is to simplify the process for others to follow. Here is the current plan.
  • I400 = i386 expanded.
  • I405 = files normally uncompressed in i386.
  • I410 = 356pack drivers (uata + vbemp + viadia) [drivers slipped to base by hand ]
  • I450 = unpacked SP5
  • I460 = later official fixes unpacked to subdirs (newest files)
  • I470 = 351pack v6 + nt351ole - drivers


The actual blend-files are unpacked into the named directory (eg \i510\*), while the original source files remain in subdirectories eg (\i460\pcmcia). Only the first level is used in the mixes.

i460 consists of a lot of post-sp5 service packs, where only the latest date file is kept. hotfix.*, q*.txt and readme are left behind.

i410 consists of the non-official fixes, and additional DLLs, mainly from 351packv6 and nt351ole file from bearwindows site.

  • A+B files of A, B merged, latest kept.
  • A-B means that file is removed in A if the name is in B.
  • A+-B means that a file is updated from B if the name already exists in A.


One calculates some interesting directories.

  • J001 = i460 - i450 files to be added to update.inf were SP5 to completely update the base.
  • J002 = i450+460-i400 files to be added to base, were SP5 to become fileless.
  • J003 = i460-i400-i410 files to be included in one of the two, were SP5 to be kept.
  • J010 = i460+i470-i400-i410 files to be included in one of the two, were SP5 to be kept.


J010 consists of a number of keyboard layouts and .nls files, the bulk of nt351ole, and a few other dll files, all together 53 files. Most of these head to the \system32 directory, but the fonts head to \system dir.

b002

The idea here is to create a folder 405+410+450+460+470, with txtsetup.sif and dosnet.sif updated. The files are unexpanded on the diskette set. update would be run from the cdrom after installed.

it did not work. This means that to use setupldr, we need to keep some of the older files around. These can be replaced later on, eg by sp5.

b003

The idea here is to split sp5 out, and do the following updates.

  • SP5 will become SP5 + updates from J010 (all later files), ie I450 +- J010,
  • I386 becomes i386 updated with the rump (unused files) of J010, i386 = j010 - i450 + i400.





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Male asiekierka
One of the geniuses on boot-land.net. She knows many stuff about Win, OS/2, DOS... One of the (if not only) of female OS masters here.
5 Aug 2007 - 16:41

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