Installing Windows 95 over MS-DOS

The versions of MS-DOS supported for installing Windows 95 are versions 3.2 or greater (for partitions that are greater than 32 MB), 4.x, 5.x, and 6.x.

Tip for Running MS-DOS After Windows 95 Is Installed

If you install Windows 95 in a different directory from the one containing your previous Windows 3.x version, you can start the computer by using the previous version of MS-DOS. To do this, make sure the entry BootMulti=1 is in the Windows 95 MSDOS.SYS file, and then press F8 during system startup and choose the related option.

Files Deleted by Windows 95 Setup

This section lists MS-DOS and other files that are deleted by Windows 95 Setup. Notice, however, that these files are deleted from the old MS-DOS directory only if you install Windows 95 in the existing Windows 3.x directory. Otherwise, the old MS-DOS files are all preserved so that you can start the computer using the older version of MS-DOS.

The Windows 95 command-line commands are stored in the COMMAND subdirectory of the Windows directory. Deleting the related MS-DOS command file will not affect your ability to use the command under Windows 95. The versions that are deleted by Setup are known to be incompatible with Windows 95; for example, many of these MS-DOS commands do not support long filenames.

MS-DOS and Windows 3.x Files Deleted by Windows 95 Setup

ansi.sys
attrib.exe
chkdsk.exe
choice.exe
country.sys
debug.exe
defrag.exe
deltree.exe
diskcopy.exe
display.sys
doskey.com
d??space.bin1

d??space.exe1
d??space.sys1
edit.com
edit.hlp
ega.cpi
emm386.exe
fc.exe
fdisk.exe
find.exe
format.com
help.com
help.hlp

keyb.com
keyboard.sys
label.exe
mem.exe
mode.exe
more.com
move.com
mscdex.exe
msd.exe
networks.txt
nlsfunc.exe
os2.txt

ramdrive.sys
readme.txt
scandisk.exe
scandisk.ini
setver.exe
share.exe
smartdrv.exe
sort.exe
start.exe
subst.exe
sys.com
xcopy.exe


1 DRVSPACE.* or DBLSPACE.*

COMPAQ DOS 5.0 Files Deleted by Windows 95 Setup

cache.exe
cemm.exe
cemmp.exe

dos5help.chd
fastart.exe

fsedit.exe
help.exe

tu.exe
upcu.exe


Non – MS-DOS Operating System Files Deleted by Windows 95 Setup

delpurge.exe
delwatch.exe
diskmap.exe
diskopt.exe
dosbook.exe

hidos.sys
lock.exe
login.exe
memmax.exe
password.exe

rendir.exe
setup.exe
sys.com
taskmax.exe
taskmax.ini

touch.exe
uninstal.exe
xdel.exe
xdir.exe


Pre – MS-DOS 5.0 Files Deleted by Windows 95 Setup

append.com
asgnpart.com
backup.exe
bootf.com
cache.sys
cemm.exe
cemmp.exe
chkdsk.exe
cmpqadap.com
compact.exe
configur.com
debug.exe
detect.com
diskcomp.exe
diskcopy.exe
diskinit.com
diskinit.exe
dosutil.meu
dskscan.exe
dsksetup.com
edlin.exe
emm386.sys

enhdisk.sys
fastopen.exe
fastart.exe
fdisk.com
filesys.exe
for150.exe
format.exe
gdu.exe
graftabl.exe
graphics.exe
hardrive.sys
hpcache.com
hpdcache.com
ifsfunc.exe
indskbio.sys
install.exe
keyb32.com
keybchf.com
keybchg.com
keybda.com
keybfr.com

keybfr.exe
keybgk.com
keybgr.com
keybgr.exe
keybit.com
keybit.exe
keybno.com
keybsp.com
keybsv.exe
keybsw.com
keybuk.com
keybuk.exe
keybus.com
label.exe
mode.exe
mvbuild.exe
pamcode.com
paminstl.com
part.exe
password.exe
prep.exe

print.exe
recover.exe
restore.exe
select.com
select.dat
select.exe
select.hlp
select.prt
select1.dat
select2.dat
setup.exe
shell.clr
shell.hlp
shell.meu
shellb.com
shellc.exe
tree.exe
vdisk.sys
xmaem.sys
zcache.sys
zspool.com


System Startup with MS-DOS Multiple Configurations

Windows 95 supports multiple configurations for the same computer, and it dynamically determines which configuration is being used. If Windows 95 cannot determine the specific configuration used during system startup before processing CONFIG.SYS, then it presents a menu of available configurations as listed in the Registry, and it prompts you to select the configuration you want.

If you have a multiple configuration established in CONFIG.SYS, that menu is presented next. However, if you use a multiple configuration to switch between different versions of Windows, you must edit CONFIG.SYS manually to repair this configuration after Windows 95 is installed. For information about how to create multiple configurations for the same computer under Windows 95, see Chapter 19, "Devices."