Format of VINES control block for subfunction 0003h:
Offset	Size	Description	)
 00h	WORD	0003h
 02h	WORD	pointer to argument block (see #03335)
 04h	WORD	error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
		(see #03325)
 06h  4 BYTEs	reserved
SeeAlso: #03329,#03335,#03337