DOCUMENT:Q102901  01-SEP-1993  [W_NT]
TITLE   :INF: How to Make an MS-DOS 5.0 Boot Disk with Windows NT
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:

 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
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SUMMARY
=======

It is possible to make an MS-DOS bootable disk when running Windows NT
if MS-DOS version 5.0 is being used on drive C. If a machine running
Windows NT has any other version of MS-DOS installed, the error
message "Incorrect DOS Version" will be returned when attempting the
SYS or FORMAT A: /S commands.

Note: This information is specific to the Intel x86 hardware platform.

To create a bootable disk with Windows NT, use the following
procedure:

1. Log on to Windows NT using an account with Administrator
   privileges.

2. Place a blank floppy disk in the drive A.

3. Select File, choose Run from Program Manager's menu, type
   C:\DOS\COMMAND.COM, then choose OK. This will start a virtual
   MS-DOS machine (VDM). The copy of COMMAND.COM in the MS-DOS
   directory must be used.

4. From the MS-DOS directory (C:\DOS), type the FORMAT A: /S command.

5. To boot from the disk, a valid COMMAND.COM must be copied to it.
   Use File Manager or the VDM to copy the correct version of
   COMMAND.COM from the C:\DOS directory to the floppy disk.
   COMMAND.COM should have the following attributes:

      Size = 47845   Date = 4-9-91     Time = 5:00 am  for version 5.0
      Size = 47895   Date = 11-11-91   Time = 5:00 am  for version 5.0a

The floppy disk should now be able to boot as expected; it will be an
MS-DOS 5.0 boot disk.

MORE INFORMATION
================

If a valid COMMAND.COM is not copied to the floppy disk and you
attempt to boot from it, the system will hang. An incorrect copy of
COMMAND.COM is copied to the floppy disk by Windows NT during the
format. This copy is located in the \WINNT\SYSTEM32 directory. The
incorrect copy will have these attributes:

   Size = 49931   Date = 7-24-93    Time = 5:11 am

Additional reference words: 3.10 howto
KBCategory:
KBSubcategory: mdos

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Copyright Microsoft Corporation 1993.