RBIL61 - INT 2F - DR DOS 6.0 TaskMAX - CHECK IF TASK RUNNING PRIMARY COMMAND INTERPRETER

INT 2F - DR DOS 6.0 TaskMAX - CHECK IF TASK RUNNING PRIMARY COMMAND INTERPRETER 
	AX = 270Dh
	DX = task index
Return: DX = status
	    0000h if primary command interpreter (COMMAND.COM, etc.) running
	    0001h if not in root shell for task
Note:	TaskMAX will return 0001h if the specified task has spawned another
	  command interpreter with AX=2707h
SeeAlso: AX=2707h,AX=270Ch