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Real DOS-mode Patch for MS-DOS 8.0

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#1 0ffer



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Posted 03 June 2010 - 09:40 AM

Patch from Microsoft to restore the "Real-mode functionality" ( Microsoft not recommended the use of third-party methods to restore some aspects of the Real-mode functionality) in IO.SYS extracted from Windows XP SP3 diskcopy.dll by replacing
First 2048 bytes from original unmodified Windows Me OEM CD IO.SYS.
This IO.SYS directly support real MS-DOS mode.(Comparison of x86 DOS operating systems - Wikipedia, the free encyclopedia). Windows Me OEM CD IO.SYS can load automatically DBLBUFF.SYS and IFSHLP.SYS etc... for launch Windows 9x and display boot logo and startup text: Now preparing to start your new computer... Startup Menu has no differences with the Startup Menu Windows 98 SE.
Inside IO.SYS extracted from Windows XP, Vista & Seven diskcopy.dll and decompressed with The Decompressor for IO.SYS Version 8 by Rudolph R. Loew you can find not displayed string: Now preparing to start your new computer...Also Windows Me splash screen does not appear, DBLBUFF.SYS and IFSHLP.SYS don't load, Startup Menu disabled etc... first 2k check booting from floppy. But it is some file modified by Microsoft.
I tried booting to ms-dos prompt without dos configuration files (msdos.sys=winboot.ini, config.sys. autoexec.bat) & entered set command:


I need Patch to DisableLog straight from decompressed IO.SYS without using msdos.sys=winboot.ini

#2 Wonko the Sane

Wonko the Sane

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Posted 04 June 2010 - 09:37 AM

.... in IO.SYS extracted from Windows XP SP3 diskcopy.dll ....

Just for the record, since not everyone may know HOW to do this:


#3 0ffer



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Posted 07 September 2010 - 01:51 PM

Create8.bat - batch file with Freeware Tools extract msdos 8 core: io.sys and command.com from diskcopy.dll in you Windows XP, Vista or 7, restore io.sys and command.com the "Real-mode functionality" in same folder, create new boot floppy image CORE8.IMA.
You can add Oformat.com to floppy image from http://download.micr...loyTools_en.cab
Decompressed & Reduced IO.SYS version 8.0 Size 130 832