INT 62 - Cswitch - SPAWN                                                        
	AH = 07h
	ES:BX -> function address to start executing at
	CX = priority (1-10)
Return: AX = result/status
	    FFFDh  no free memory control blocks
	    FFFEh  no free task control blocks
	    FFFFh  not enough memory to create new task stack
	    >0	   the tcb number of the new task, indicating no error
SeeAlso: AH=0Fh"Cswitch",AH=10h"Cswitch"