Format of XMZ v1.02 EMB Handle structure:
Offset	Size	Description	)
 00h	BYTE	flag byte
		04h unused handle slot
		02h in-use handle slot
		01h handle slot that represents a free block
 01h	BYTE	lock count
 02h	WORD	block start address (1K increments)
 04h	WORD	block length (1K increments)
SeeAlso: #02788