INT 2F - NDOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK               
	AX = E44Fh
	BX = 0001h
	CX = number of keystrokes (01h-FFh)
	DS:DX -> keystroke list (one word per keystroke)
Return: AX = status
	    0000h successful
	    nonzero failed
	BX,CX,DX destroyed
Notes:	the keystrokes are the exact values to return from subsequent calls to
	  INT 16 with AH=00h,01h,10h, or 11h, with the following exceptions:
		0000h causes subfunctions 01h and 11h to indicate an empty
		      keyboard buffer
		FFFFh is followed by a word indicating the number of clock
		      ticks to delay before the next faked keystroke
	v4.00 KSTACK overwrites any unread keystrokes from the previous
	  invocation, and does not range-check CX; it will overwrite memory
	  following the resident portion if CX is greater than 100h.
	this function is also supported by ANSIPLUS v3.01+ and K3PLUS v6.20+,
	  which emulate the 4DOS and NDOS keystack
SeeAlso: AX=E44Fh/BX=0000h,INT 16/AH=00h,INT 21/AX=4403h"DOS"