INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "BEGINC" - BEGIN CRITICAL REGION
	AX = 101Bh
Return: task-switching temporarily disabled
Notes:	will not task-switch until "ENDC" (AX = 101Ch) called unless task
	  voluntarily releases the CPU(Central Processing Unit) The microprocessor which executes programs on your computer. (upon regaining the CPU(Central Processing Unit) The microprocessor which executes programs on your computer., task-switching
	  will again be disabled)
	suspends the caller until DOS is free
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AX=DE13h,AX=DE1Ch,INT 2F/AX=1681h
SeeAlso: INT 60/DI=0602h