Steps to take...

1. Copy (duplicate) the whole Windows directory and all it's sub-directories to another directory, like \WIN31. Copy the \DOS directory to another one as well, like \DOS6 .
   If you have multiple partitions I recommend you put the old DOS/Win 3.x directories on another drive.

2. Edit all the INI files in the WIN31 directory and change all references from \WINDOWS to \WIN31. The "find and replace" command in most word processors makes this easier, but be sure you save them as text files.

3. Boot up your PC and install Win95 SETUP through windows program manager "FILE-RUN". As you install WIN95 it will rename your CONFIG.SYS AND AUTOEXEC.BAT files to CONFIG.DOS and AUTOEXEC.DOS. (When you dual boot it renames them back to CONFIG.SYS AND AUTOEXEC.BAT....and then backups the WIN95 versions as .W40.)

4. After Win95 finishes installing and you are on the desktop, use notepad with "select all files *.*" to edit the CONFIG.DOS and AUTOEXEC.DOS files and change all \WINDOWS references in them to \WIN31, and all \DOS references to \DOS6.

   [Options]

   BootGUI=1

   Network=0

   BootMulti=1

   BootMenu=1

   BootMenuDefault=7 (original DOS as default. Use 1 for Win95 default)

   BootMenuDelay=5 (number of seconds to select something else)

5. In order for the dual boot menu to work, the following lines must appear in the [Options] section of your MSDOS.SYS file: (If you use Doublespace or Drivespace disk compression you must change both MSDOS.SYS files - one on the boot drive and one in the compressed drive)

   To add these lines, first, open "My Computer" and use the menu bar to VIEW - OPTIONS - VIEW - Show All Files, and also unclick "hide MS-DOS file extensions". Then double-click on the MSDOS.SYS icon and look. If it doesn't have all the above lines, you'll need to edit this file and put them in.

   Since the MSDOS.SYS file is "read-only-hidden" you'll need to first change the file attributes and then use the notebook editor to insert the new line(s). Then you'll have to change the attributes back to their original states when done to protect the file. If you are using Doublespace or Drivespave compression make sure you change the MSDOS.SYS files in both the boot drive and the compressed drive.

6. Now, exit Win95 and re-boot. You should now see the boot menu and be able to select which mode you want to boot into.

Any programs you install after this will only appear in the system you were running at install time. For example, if you install MS Word under Win95 you will have to install it again under old DOS/Windows if you want to run it both ways. You can install the program to the same directory both times and you'll simply overwrite the files and avoid having two sets of the new program on your hard drive.