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Virtual Floppy Drive 2.1
This is a virtual floppy drive for Windows NT / 2000 / XP developed by Ken Kato
(Reported to work also on 2003 Server and Vista).
Note !!! This version works only on 32 bit systems !!!
See technical info on 64 bit compilation.
You can mount a floppy image file as a virtual floppy drive and directly accessthe contents -- view, edit, rename, delete or create files on a virtual floppy,format a virtual floppy, launch a program on a virtual floppy... almost anythingyou can do with a real floppy.
Introduction to version 2.1
The latest version is 2.1.2008.206
Changes from 2.1.2005.404 version
- Replaced zlib version from 1.2.2 to 1.2.3. Thanks to Stefan Kanthak for pointing out the security vulnerability of the previous version. (Sorry I didn't respond soon, Stefan).
- Since some people seemed to have trouble finding out how to create a new image with VfdWin, I decided to change the text on 'Open' button to 'Open/Create'. I hope it helps.
- Added platform checking so that VFD does not start on 64 bit OS.
- Version display now shows build number (build date, in VFD's case) because I decided to leave the major and minor versions unchanged.
Major changes since 2.0 RC
- Changed the name to 'Virtual Floppy Drive' from 'Virtual Floppy Driver'.
Well, this may seem trivial to you, but it seems more appropriate to me :-) because while the driver is still the core of this project, the interface programs have grown to take more and more significant roles in the whole picture. - Save virtual floppy image into files.
You can save modified RAM disk image into files or save mounted file image into different files. - Now you can specify either 3.5' or 5.25' for 640KB, 720KB and 1.2MB media.
- Now you can specify media size different from the actual file size.
For example, you can mount a 1.44MB image as a 1.2MB media, or you can use image files with surplus data at the end which some floppy backup programs create. - Now you can change the driver start method without reinstalling the driver.
- VFD.EXE command line options to suppress prompting.
Now you can run your batch file without interruption. - VFD.EXE interactive console.
- Removed the Mount Manager support on Windows 2000 and later.
It was causing a problem that once the driver is stopped it cannot restart until the system is rebooted.
I may restore the feature when the driver becomes fully Plug & Play compatible.
Disk Image Mounter Mac
Other 2.x major features
- 2 virtual floppy drives.
- FILE mode and RAM mode
In FILE mode, image files are mounted directly.
Changes made in virtual media are written to the file immediately.
In RAM mode, on memory copy of image files are mounted.
Enables to open read-only files as writable media.
Changes are not written back to the image file (discarded on image close). - Supports the following media types:
160KB (5.25'), 180KB (5.25'), 320KB (5.25'), 360KB (5.25'), 640KB (5.25'/3.5'), 720KB (5.25'/3.5'), 820KB (3.5'), 1.2MB (5.25'/3.5'), 1.44MB (3.5'), 1.68MB (3.5'), 1.72MB (3.5'), 2.88MB (3.5') - WinImage compressed image (*.IMZ) support.
RAM mode open only, and cannot save into an IMZ file. - Formatting virtual media
New images created with VFD are pre-formatted with FAT12.
Enables to format media which Windows' format cannot handle. - Switching write-protection of virtual media on the fly.
- Persistent drive letters
A drive letter is not removed when an image is closed.
Drive letters are preserved until explicitly removed.
The same drive letter is assigned the next time the driver starts.
On Windows 2000 SP2 and later, drive letters are not deleted when the user logged off.
On Windows XP and Terminal Servers drive letters are globally visible.
You can choose between the old (ephemeral) drive letters. - Shell extension
Open/Close an image with the right click menu on the virtual drive icon.
Virtual Floppy Drive property sheet.
Drag-and-drop an image file with the right button to the virtual drive icon to open it (Windows 2000 and later).
Download
- vfd.sys (kernel-mode driver: version 2.1.2005.404)
- vfd.exe (command line console)
- vfd. dll (driver control and shell extension library)
- vfdwin.exe (GUI interface)
- readme.txt (README English)
- vfdhelp.txt (VFD.EXE command reference English)
- readmej.txt (README Japanese)
- vfdhelpj.txt (VFD.EXE command reference Japanese)
- copying.txt (GNU GENERAL PUBLIC LICENSE Version 2)
vfdsrc-080206.zip (source code)
CAUTION! This version can not coexist with previous versions.
Please carefully read the readme.txt before using the program.
Please send your comments, even if you don't get any problems. Even justone sentence like 'Works on Windows ** SP*' would be appreciated.
FAQ & known issues (including unconfirmed)
- Super FAQ: NTFS compressed/encrypted files cannot be mounted directly. It is intentional to avoid the Windows cache manager dead lock.
- Super FAQ: Current VFD can not create image from or save to actual floppy disk. Use programs like WinImage or RawWriteWin for that purpose.
- Windows XP Explorer shows virtual drives as removable drives, not as floppy drives. Also it shows a 5.25' floppy icon if a virtual drive is A: or B:, and a removable drive icon otherwise. I'd say it's a bug of the Explorer. Other properly designed programs won't have any such problem.
- Windows XP Explorer sometimes doesn't respond properly when you add / change drive letters of virtual drives. I think it's also an Explorer bug, because the same thing happens when I change drive letters of a hard drive, a CD drive, etc. Restart the Explorer or, if that fails, log off and log on again and the the virtual drives will be recognized correctly.
- Windows NT/2000 FORMAT.EXE can format the following media:
160K, 180K, 320K, 360K, 640K, 720K, 1.2M, 1.44M, 2.88M
Windows NT/2000 Explorer can format the following media:
360K, 640K, 720K, 1.2M, 1.44M, 2.88M
Windows XP FORMAT.EXE and Explorer can format 1.44M media only.
Use VFD.EXE or VFDWIN.EXE to format media with size not listed above. - Windows 2000/XP Explorer's check disk does not work with VFD drives.
Use command line CHKDSK.EXE instead. - Changing a virtual media between 3.5' and 5.25' does not update the drive type display of the Explorer. It's just cosmetic. Any programs which have to distinguish them should recognize the drive type correctly.
- Some programs (especially old ones) assume floppy drives to be either A: or B:. If certain programs don't recognize a VFD drive, try changing the drive letter to A: or B:.
- Windows 2000/XP sometimes assign conflicting drive letters, especially with removable devices such as USB drives and network drives. If a VFD drive suddenly becomes unaccessible, try changing the drive letter.
- Conflict with swapfs (http://www.acc.umu.se/~bosse/) is reported by Suzu. (unconfirmed)
- Some users have reported gradual system slow down and eventual lock up while copying a large amount of data to/from virtual drives. (unconfirmed)
Todo
You bet:- Creating image from a physical removable/floppy drive.
- Writing image into a physical removable/floppy drive.
- Support for original image compression, encryption, etc., with plug-ins.
- Shell extension improvement.
- Task tray application (drive indicator, etc.).
- zip / img file support improvement (create, save, password protection, etc.).
- Help / documentation improvement.
- Make the number of virtual drives configurable.
- Multi-lingual support with message files.
- API for the virtual drive access DLL.
- Installer, uninstaller.
- Complete Plug & Play support
- Windows 9x support
Disk Image Mounter Ubuntu
Useful programs to accompany the VFD
- http://uranus.it.swin.edu.au/~jn/linux/rawwrite.htm
RawWriteWin (free): a Windows program to create floppy image files from real floppy disks, and vice versa.
64 bit compilation
Recently two people have independently gave me some informationabout compiling and running VFD driver on a 64 bit system,and I decided they are worth sharing here on this page.Please note that I cannot answer any question on the matter as I myselfhave never used a 64 bit system.
A person with a handle name 'critical0' gave me the infoand a driver binary compiled for AMD64. Here is an extract from an emailhe sent to me:
On Sat, 21 Oct 2006 critical0 wrote:The driver binary he sent to me:vfd-x64-critical0.zip
Igor Levicki also gave me the info about changingdriver code for 64-bit compilation:
On Wed, 22 Nov 2006 Igor Levicki wrote:
NOTE: Both critical0's and Igor'ssuggestions take different approaches to the same problem.Igor has pointed out that type casting from ULONG_PTR * toPULONG, which appears in critical0's fix, is unsafe andI agree that type casting in general can be dangerous.
However, in this particular case, I believe that critical0'sfix is reasonably safe. Because the address referred toby the pointer in question is first initialized properlywith 0 and a value to be stored in that address never getsto be negative or exceeds 300 or so, which is not evenclose to the 32 bit limitation.
NOTE2: According to Igor, type castingmethod has another drawback in terms of processor and memorybus cycles. So you should take Igor's suggestion when youbuild a 64-bit binary yourself . However if you cannot buildit yourself, I still believe that critical0's binary is notlikely to crash or anything. Sorry for inconvenience butI'm not going to build and distribute a 64-bit binary myselffor the time being, largely because I cannot even confirmthat my build works on a 64-bit system.At least critical0's binary actually works for him.
Previous version (Version 1.01)
Binary: vfd.zip(78,508 bytes) Apr. 27, 2003
Source: vfdsrc.zip(91,767 bytes) Apr. 27, 2003HISTORY
- Feb. 6, 2008
- Version 2.1.2008.206
- Apr. 4, 2005
- Version 2.1
- Oct. 3, 2004
- Version 2.0 Release Candidate
- Sep. 24, 2004
- Version 2.0 beta 3
- Sep. 12, 2004
- Version 2.0 beta 2
- Jun. 17, 2004
- Version 2.0 beta preview
- Apr. 27, 2003
- vfdwin.exe 1.01 -- Fixed a few bugs in user interface.
- Apr. 16, 2003
- Initial Release