Format of SHARE.EXE Record Lock Record:
Offset	Size	Description	)
 00h	WORD	offset in SHARE's DS of next lock table in list or 0000h
 02h	DWORD	offset in file of start of locked region
 06h	DWORD	offset in file of end of locked region
 0Ah	DWORD	pointer to System File Table entry for this file
 0Eh	WORD	PSP segment of lock's owner
---DOS 5+ ---
 10h	WORD	lock type: (00h lock all, 01h lock writes only)
SeeAlso: #01636,#01637,#01639,#01642