INT B3 - ZIPKEY - REQUEST POP UP                                                
	AH = 7Dh
	BL = index number to simulate pressing a hotkey
	    FFh for immediate popup with no playback on return
Return: CF set on error
	    AL = error code
		FDh already busy with another request
		FEh illegal function
	CF clear if successful
	    AX destroyed
	    window popped up and was closed by the user
SeeAlso: AH=70h