Windows 3x on DOSBox guide
Windows 3x will now run in DOSBox from a mounted folder. You should have some experience with using
DOSBox, first, before attempting this.
This guide is not a substitute for the DOSBox README.
If you haven't worked with DOSBox before, see the DOSBox README. If you still need helpDOSBox, or with mounting
drives in DOSBox, you can refer to the guides here:
or one of the many online DOSBox guides, starting with ones on the Official
DOSBox forums. Once you have familiarized yourself with using DOSBox, you can gather all of the necessary
installation files, tools and drivers.
You will need DOSBox .065 or higher and the Installation files
for Windows 3.1, 3.11 or Windows for Workgroups 3.11. You will also
need to install display and audio card drivers to have sound or
more than 640x480, 16 colors. Downloads for these drivers can be
found below.
You will need to create a folder for your Windows 3x "C:" drive. Make a sub-folder to hold the Windows
install files. Copy all of the files from the original 3.5" floppies into that sub-folder to install Windows
3x from.
Some generic instructions (under Windows) to install Windows 3x in DOSBox:
Installing Windows
Before starting, here are a few warnings to heed:
- DON'T mount your actual c:\ drive
- Mounting your actual c:\ drive root as c in DOSBox (never
do 'mount c C:\' - it's okay to 'mount c C:\doswin') as this places
your regular Windows at risk when you try to install Windows 3.x.
YOU'VE BEEN WARNED!
- Windows 3x support is only in DOSBox version 0.65 and higher.
- Create a folder on your computer to mount as your "C:" drive.
- Create a sub-folder in this folder to hold install files, name it say, INSTALL.
- Copy all the files on your Windows 3x install floppies into this install folder.
- Start DOSBox.
- At the prompt, type:
- mount c c:\dosboxc [Enter]
- c: [Enter]
- cd install [Enter] (or whatever you named it)
- setup.exe [Enter]
Just follow the Windows installation instructions through






Just exit DOSBox at this point as you will have no mouse in
Windows 3x until you restart DOSBox.

Windows 3x will be installed on your mounted "C:" drive, but will only have 640x480 resolution with
16 colors and no sound. You will need to now install drivers to have sound and greater resolutions and color
depths.
- To install the Graphics Card Drivers, see this guide.
- To install the SoundBlaster Drivers, see this guide.
Notes
Installing Windows 3x to a disk image:
It is also possible to mount an image, boot from it, install DOS and then Windows. See this
guide on boot images on VOGONS. After you have
created your disk image, you can use Disk
Explorer to copy install folders into the image, boot from the image (see the guide again) and begin installing.
Both XMS and EMS must be set to false in your DOSBox.conf. For most uses a boot image is not practical. Another
problem is that you can only use mounted images not mounted real folders or drives (floppy, CD-ROM). However,
some games might only install from a boot image. A boot image might sometimes be the only way.
Some things that don't work correctly with Windows 3x in DOSBox:
- The "A:" drive, it won't show in Windows File Manager
nor in the "run" dialog if you mount an "A:". You can
however, enter the path i.e.: "a:\setup.exe". It will show when
nothing is mounted as "A:".
- 32-bit file and disk access doesn't work in DOSBox.
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