This is a virtual disk driver for Windows NT/2000/XP that uses

    one or more files to emulate physical disks.

    Copyright (C) 1999-2006 Bo Brantén.

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    The GNU General Public License is also available from:

    http://www.gnu.org/copyleft/gpl.html

    Windows and Windows NT are either registered trademarks or trademarks of

    Microsoft Corporation in the United States and/or other countries.

    Please send comments, corrections and contributions to bosse@acc.umu.se

    The most recent version of this program is available from:

    http://www.acc.umu.se/~bosse/

    Revision history:

   14. 2006-01-05

       Updated impersonation so that use of image files stored on network

       drives work on Windows 2000 SP4, Windows XP SP2 and

       Windows Server 2003 SP1.

   13. 2004-06-09

       Small fix in file size handling.

   12. 2004-05-27

       Possible fix for memory leak.

   11. 2002-11-30

       Added ioctl to query information about mounted disk image files by

       request from developer of GUI.

   10. 2002-11-24

       Added a check so that FileDisk doesn't use compressed or encrypted

       images. For an explanation why this doesn't work see comment in the

       source code.

    9. 2002-08-26

       Corrected the share access for read-only FileDisk images.

    8. 2002-08-11

       Updated the control application to support UNC paths.

       Changed the handling of CD-ROM device objects to avoid some problems on

       Windows XP.

       Corrected the handling of file sizes so that FileDisk images can be

       sparse files.

    7. 2002-02-28

       Added support for CD-images.

    6. 2002-01-21

       Added support for impersonation so that FileDisk images can be stored

       on network drives.

    5. 2002-01-18

       Updated for Windows XP by Robert A. Rose.

    4. 2001-07-08

       Formating to FAT on Windows 2000 now works.

    3. 2001-05-14

       Corrected the error messages from the usermode control application.

    2. 2000-03-15

       Added handling of IOCTL_DISK_CHECK_VERIFY to make the driver work on

       Windows 2000 (tested on beta 3, build 2031). Formating to FAT still

       doesn't work but formating to NTFS does.

    1. 1999-06-09

       Initial release.