INT 2F - Forte/Gravis ULTRAMID - INSTALLATION CHECK                             
	AX = CD00h
	BX = 464Fh ('FO')
	CX = 5254h ('RT')
	DX = 4520h ('E ')
Return: AL = FFh if installed
	    BX = 4155h ('AU')
	    CX = 4449h ('DI')
	    DX = 4F20h ('O ')
	    ES:SI -> program ID string
Program: ULTRAMID is a MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. driver for the Gravis UltraSound which allows use
	  of AIL drivers with other software
Range:	AH=CDh-ECh, selected by scanning for an available multiplex number
SeeAlso: INT 21/AX=FD12h,AX=CD00h/DX=4957h