DOCUMENT:Q81643  17-DEC-2000  [msdos]
TITLE   :Exchanging a Disk Between DR-DOS 6.0 and MS-DOS
PRODUCT :Microsoft Disk Operating System
PROD/VER:MS-DOS:1.x,2.x,3.x,4.x,6.0,6.2,6.21,6.22
OPER/SYS:
KEYWORDS:

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft MS-DOS operating system versions 1.x, 2.11, 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.01, 6.0, 6.2, 6.21, 6.22 
-------------------------------------------------------------------------------

SUMMARY
=======

If you use the DR-DOS 6.0 DELWATCH delete-tracking utility on a floppy disk, you
should also use the DELPURGE utility on that disk before using it on an MS-DOS
systems.

If you haven't used DELWATCH on a floppy disk, exchanging it between DR-DOS 6.0
and MS-DOS is accomplished much as you would change a disk from MS-DOS 5.0 and
later to another version of MS-DOS.

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

The DR-DOS 6.0 DELWATCH utility changes how DR-DOS implements deletions.
Normally under MS-DOS (and non-DELWATCH) DR-DOS, a file is deleted by marking
the first character of a file with an "E5" character and marking the area of the
disk where the file was stored as "unused" in the file allocation table (FAT).
DELWATCH marks the file as "pending delete" by changing the first character of
the file to an "05" character. These files are not actually deleted until the
DELPURGE utility is used.

"Pending delete" files can cause confusion to MS-DOS and its utilities (such as
CHKDSK and UNDELETE) as well as third-party disk utility programs. You can
determine if you have "pending delete" files using the DR-DOS 6.0 CHKDSK
utility.

If "pending delete" files exist, use DELPURGE to delete them from your floppy
disk before using it on an MS-DOS systems.

DR-DOS is manufactured by Novell, a vendor independent of Microsoft; we make no
warranty, implied or otherwise, regarding this product's performance or
reliability.

REFERENCES
==========

"Microsoft MS-DOS User's Guide" for version 6.0, page 187.

Additional query words: 6.22 1.x 2.x 3.0 3.00 3.1 3.10 3.2 3.20 3.21 3.3 3.30 3.3a 3.30a 4.0 4.00 4.01 4.01a 5.0 5.00 5.0a 5.00a 6.00 6.20 3rdparty dr dos

======================================================================
Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS1xSearch kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS330 kbMSDOS401 kbMSDOS211
Version           : MS-DOS:1.x,2.x,3.x,4.x,6.0,6.2,6.21,6.22

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 2000.