Start | Run | Type: command | Click OK
What opens?
command.com is the MS-DOS Prompt
Start | Run | Type: cmd | Click OK
What opens?
cmd.exe is Windows XP command interpreter.
Either command.com or cmd.exe are command prompts.
Windows XP does not have MS-DOS, but a lot of the XP commands are still the
same as the old DOS commands. Windows XP has an MS-DOS emulator.
[[Windows XP retains and enhances almost all MS-DOS functionality. The
following tables explain:]]
New ways to do familiar tasks
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/dos_diffs.mspx
or
Start | Run | Copy and paste the following line:
hh ntcmds.chm::/dos_diffs.htm
Click OK.
Scroll down to Unavailable MS-DOS Commands
MS-DOS subsystem commands
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/dos_cmds.mspx
or
Start | Run | Paste this in the box and click OK...
hh ntcmds.chm::/dos_cmds.htm
There is, however, in all NT Operating Systems, a 16 bit MS-DOS Subsystem.
command.com is the MS-DOS command interpreter and runs under ntvdm.exe (NT
Virtual Dos Machine). ntvdm.exe emulates an Intel 80286 machine running
MS-DOS. NT uses a VDM that contains an extra software layer called the
Win16 on Win32 (WOW) layer and wowexec.exe (Windows On Windows Execution
Process) supplies that extra layer.
The 16 bit MS-DOS Subsystem uses a special version of command.com and
command.com uses autoexec.nt and config.nt.
--
Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In