Online HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens
DOS BACKUP Control Information
BACKUPID.@@@ Format
Offset Size Description
00 byte Disk sequence flag:
00 indicates disk is not the last backup diskette
FF indicates disk is the last backup diskette
01 word Floppy disk sequence number (Intel format)
03 word Backup year, four digits (Intel format)
05 byte Day of month (1-31)
06 byte Month of year (1-12)
07 dword System time if /T was specified (see FILE ATTRIBUTES)
0B 117bytes Unused
Backup File Header
Offset Size Description
00 byte Disk sequence flag:
00 indicates disk is not the last backup diskette
FF indicates disk is the last backup diskette
01 byte Floppy disk sequence number
02 3bytes Unused
05 64bytes Full pathname (without drive designator)
45 14bytes Unused
53 byte Length of file path name at offset 05 plus 1
54 44Bytes Unused
[helppc.bosbyte.nl] backup headers