Jeff Patten wrote in a message to Patrick Haller:

 JP>    Some time ago, Albert Shan wrote some utilities of
 JP> interest.  One can mount or dismount the HPFS file system
 JP> from a floppy.  Another is a virtual disk that can imitate a
 JP> floppy drive which can then be be formatted with HPFS.  But
 JP> to get the HPFS format on a floppy, you have to use his disk
 JP> image utility to snatch the format off the vdisk and put it
 JP> on the floppy...  (Look for SVD117.* and DXP234.*)

I'm not familiar with these, but I'll check into them.

 JP>    It appears that mounting/dismounting the file system is
 JP> the easy part.  After all FORMAT does it every time you
 JP> reformat a drive to a different file system.  The tricky
 JP> part is getting HPFS on the disk in the first place.  

The file system mounting procedure simply is not used if the device claims
to be removable.  LOCKDRV.FLT not only change the claim but also locks the
media. It would be an easy -- and unwise -- hack to modify LOCKDRV.FLT so
that it avoided actually locking the media, but continued to claim that it
was not removable.  I suppose it is possible to allow dynamic locking and
unlocking from a command line utility that communicates with the FLT,
implementing a sort of mount/dismount command.
 
-- Mike


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