Format of HP Vectra EX-BIOS bucket header:
Offset	Size	Description	)
 00h	DWORD	pointer to next bucket header (FFFFh:FFFFh if last)
 04h	WORD	upper bound on string index
 06h	WORD	lower bound on string index
 08h	DWORD	pointer to array of string offset pointers
 0Ch	WORD	segment of strings
Note:	the strings pointed at by the offset pointers are byte-counted ASCIZ
	  strings