INT 21 - Quarterdeck - QEMM-386 v5+ - GET API ENTRY POINT

	AX = 4402h
	BX = file handle for device "QEMM386$"
	CX = 0004h
	DS:DX -> DWORD buffer for API entry point
Return: CF clear if successful
	    buffer filled (refer to INT 67/AH=3Fh for entry point parameters)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)
Note:	Quarterdeck recently (June 1993) documented this function, but the
	  documentation incorrectly states that it is only available for
	  QEMM 6+
SeeAlso: AX=4402h"HOOKROM",INT 2F/AX=D201h/BX=5145h,INT 67/AH=3Fh