Windows 95/98 and Windows NT/2000 store long filenames on FAT in special directory entries with set attributes ReadOnly, Hidden, System and Volume, so if you access FAT volume from DOS you don't see these "files". These special entries have this mad structure:
byte sequence number for slot string(10) first 5 characters in name byte attribute byte byte always 0 byte checksum for 8.3 alias string(12) 6 more characters in name word starting cluster number, 0 in long slots string(4) last 2 characters in name
Problem occur when you delete or modify file with long name from system without VFAT support, because only DOS 8+3 entry will be deleted or modified. Scandisk from Windows 95/98 can repair this problem.
Linux has it's own FAT extensions which gives you long filenames, permissions and owners, links and special devices on FAT partition, called UMSDOS. Each directory contains file named "--linux-.---". There are stored long names and other necessary fields. For more information see file /usr/src/linux/Documentation/filesystems/umsdos.txt. Author of Linux umsdos driver is Jacques Gelinas < email@example.com> and it is currently maintained by Matija Nalis < firstname.lastname@example.org>.
OS/2 Warp version 3,4 and 5 stores long filenames and extended attributes on FAT volume in files "\ea data. sf" and "\wp root. sf" (both files are in root directory of filesystem). AFAIK there is no known implementation of OS/2 EAs for any other OS. If you can supply any information about EA structure, don't hesitate to mail them to me.
Star LFN is an emulator that allows programs, running under DOS 4.0 or above, to use the long filename functions present in Windows'95 DOS boxes. Currently, it can only read and write long filenames from and into a system+hidden file, which means you can't either read or write real Windows'95 long filenames. For more information see http://sta.c64.org/starlfn.html.
Some people say that Microsoft has released a driver called LFNDOS that provides the Microsoft Long Filename API under DOS. If you know where can this driver be downloaded, send me e-mail please.
Under Windows95, a DOS program can use long filenames by calling a set of interrupt functions, which Windows provides. For example, COMMAND.COM will allow long filenames when run as a DOS Prompt from Windows, but not if you restart in MS-DOS mode. Other programs such as EDIT.COM and all DJGPP programs use long filenames if available.
The author probably won't be releasing any more versions of fsresize, because he is working on parted - a Partition Magic clone. It will be able to resize, copy, create and check filesystems/partitions.