CAPTAIN'S QUAD OS MACHINE
http://members.aol.com/axcel216/
It is possible to quad-boot Windows 98/95, Windows NT Workstation 4.0,
Windows for Workgroups 3.11, and MS-DOS all on one PC with no special
utilities or third party programs.
Make sure you are using a FAT16 partition on your primary hard drive.
First, install Windows 98 or Windows 95 normally.
Click Start, Shut Down, Restart the Computer. Click Yes.
Once the computer reboots and Win98 or Win95 starts loading, press F8.
Choose "Safe Command Prompt Only."
Take an MS-DOS disk (where "A:" is your floppy drive letter) and type:
attrib a:\msdos.sys -h -s -r
attrib a:\io.sys -h -s -r
attrib a:\command.com -h -s -r
copy a:\msdos.sys c:\msdos.dos
copy a:\io.sys c:\io.dos
copy a:\command.com c:\command.dos
attrib msdos.sys -h -s -r
edit msdos.sys
Make sure it has "BootMulti=1" under "[Options]".
Press ALT + F. Press "S" for save. Press ALT + F. Choose "Exit."
Remove the floppy disk. Power off the PC and after 10 seconds power
it back on. (The ten seconds gives it time to spin down to avoid
un-necessary wear and tear).
Press F4 when Win98 or Win95 starts to load. Windows 95 will say
"StartingWindows 95..." but Windows 98 will not, so be careful to
press F4 at the right time.
It will load MS-DOS (in my case 6.22). A "DIR" command will reveal
that Win98 or Win95's IO.SYS file has been renamed to WINBOOT.SYS and
that the Win98 or Win95 versions of COMMAND.COM and MSDOS.SYS, and
AUTOEXEC.BAT and CONFIG.SYS now have the extension ".W40" after them.
Now that you are into MS-DOS, you can install Windows 3.1 or Windows
for Workgroups 3.11 into a folder. Make sure you don't accidentally
install it over Windows 98 or Windows 95!!! I suggest a folder name
such as "Win3" or "Wfw" as location for Windows 3.x.
Usually Win98 or Win95 are installed in C:\Windows by default.
Now, reboot the computer and let Win98 or Win95 load completely.
Once it's loaded, go to Start, Shut Down, Restart the Computer. Click
"Yes."
This is an important step so do not skip it!
It will say "It is now safe to turn off your computer."
At this point, put in your Windows NT Workstation 4.0 setup disk #1.
Restart your computer by pressing reset or ALT CTRL DELETE or by
turning the power off and back on again after 10 seconds have passed.
Windows NT Workstation 4.0 setup will load. Follow on screen
instructions. It will automatically detect that Win95 or Win98 is
installed. If it asks permission to overwrite the Windows 3.x
installation tell it "NO".
I suggest installing NT Workstation 4.0 it into the folder C:\WINNT.
Once NT setup is done, the next time you reboot you will get a boot
menu asking if you want to load "Microsoft NT Workstation 4.0", "NT
Workstation 4.0 [vga mode]" (similar to Win95 and Win98's safe mode)
and "Microsoft Windows". "Microsoft Windows" actually refers to
Windows 98 or Windows 95,not Windows 3.x or Windows for Workgroups.
In System Properties in Windows NT Workstation 4.0, you can easily
tell the PC if you want to boot to NT or 98 or 95 by default and you
can even specify the delay until it automatically loads the default
choice (which you can pick). I set a time of 5 seconds and chose
Windows 98 ("Microsoft Windows" as my default OS).
Now, after rebooting Windows NT Workstation, you can let NT load, OR
you can choose "Microsoft Windows." This sounds a little complicated
but is actually quite simple. If you choose "Microsoft Windows" from
the boot menu at startup,Windows 95 or Windows 98 will start to load
normally. You can let it proceed by not doing anything, OR you can
press F8 for the normal Win98/95 boot menu and make yet another choice
there, such as Safe Mode, Command Prompt Only,Previous Version of
MS-DOS (such as 6.22 and Win3.x) etc. Or you can just press F4 when
Win95 or Win98 starts to load and it will take you to MS-DOS and/or
Windows 3.x.
I have found that its okay to use Windows 98's Defrag and Scandisk
utilities on the hard disk as well as NT 4.0's CHKDSK. Try to avoid
using MS-DOS and Windows 3.x based utilities as they don't understand
long file names and other things that are only in 32 bit Windows
operating systems. Using Windows 3.x and MS-DOS based utilities can
cause problems for Win98/95 and NT 4.
If you can't find drivers for hardware you need to work with any of
the operating systems, visit the manufacturer's website."
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http://www.maximumpc.com/reprint/quad_boot/index.html
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http://www.simtel.net/pub/pd/55529.html
Restart is a system utility for advanced users with more than one operating system installed on
their machine. The program installs an icon in the notification area, and with a single click
the computer will shutdown and restart with the selected operating system .
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Multibooting with Windows XP
http://windows.about.com/gi/dynamic.../pro/using/howto/gettingstarted/multiboot.asp
http://www.ultratech-llc.com/KB/?File=BootMgr.TXT
http://www.microsoft.com/windowsxp/pro/using/howto/gettingstarted/multiboot.asp