Format of LSL information block:
Offset	Size	Description	)
 00h	DWORD	-> ??? entry point (called with BX=function 00h-11h)
 04h	WORD	???
 06h	WORD	???
Note:	due to a fencepost error, LSL v2.05 (distributed with Novell DOS 7)
	  will crash if the above entry point is called with BX=0012h