INT 2D - AMIS v3.0+ - INSTALLATION CHECK

	AL = 00h
	AH = multiplex number for program
Return: AL = 00h if free
	AL = FFh if multiplex number in use
	    CX = binary version number (CH = major, CL = minor)
	    DX:DI -> signature string (see #02569) identifying the program
		  using the multiplex number
SeeAlso: INT 2D/AL=01h,INT 2D/AL=02h,INT 2D/AL=03h,INT 2D/AL=04h,INT 2D/AL=05h
SeeAlso: INT 2D/AL=06h
Index:	installation check;Alternate Multiplex Interrupt Specification
Index:	installation check;AMIS|installation check;FASTMOUS
Index:	installation check;SPELLER|installation check;Monitor
Index:	installation check;NOLPT|installation check;NOTE
Index:	installation check;RBkeyswp|installation check;SWITCHAR
Index:	installation check;VGABLANK|installation check;EATMEM
Index:	installation check;RECALL|installation check;XPTR2