Bit Meaning
31 Special fields supported
30 Streams are interactive
29 Null-length filenames supported
28 File must be opened
27 Tell FS when flushing
26 FS supports FSEntry_File 9
25 FS supports FSEntry_Func 20
24 FS supports FSEntry_Func 18
23 FS supports image filing system extensions
22 Pass & and % where appropriate
21 Directories not required
20 Use Open/GetBytes/Close instead of FSEntry_File 255
19 Use Open/PutBytes/Close instead of FSEntry_File 0
18 Use FSEntry_Func 9 instead of FSEntry_File
17 Extra FS information word present
16 FS is read-only
8-15 number of files, or 0 if no limiting factor
0-7 FS identification no.