INT 15 - DESQview v2.00+ - "PUSHKEY" - PUT KEY INTO KEYBOARD INPUT STREAM
	AX = DE10h
	BH = scan code
	BL = character
Return: nothing
Notes:	a later read will get the keystroke as if it had been typed by the user
	multiple pushes are read last-in first-out
	if a script exists for the pushed key in the current application, the
	  script will be executed
	early copies of DV 2.00 destroy AX, BX, ES, and DI
SeeAlso: INT 16/AH=05h