INT 67 - Microsoft EMM386.EXE v4.20+ - INSTALLATION CHECK                       
	AX = FFA5h
Return: AX = 845Ah/84A5h if loaded
	    BX:CX -> API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. entry point (see #03666)
Notes:	this call is available even if EMM386 is not providing EMSsee Expanded Memory Specification
	the returned AX is 845Ah inside of MSWindows, 84A5h under bare DOS
	if no other program has hooked INT 67, an alternate installation
	  check is to test for the string
	  "MICROSOFT EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
	  handler's segment; the word immediately preceding this string
	  contains the offset of the API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. entry point
SeeAlso: AH=3Fh,AX=FFA5h/BX=4345h,INT 21/AX=4402h"EMM386.EXE"


(Table 03666)
Call EMM386.EXE API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. entry point with:
	AH = 00h get memory manager's status
	    Return: AH = status
			bit 0: not active (OFF)
			bit 1: in "Auto" mode
	AH = 01h set memory manager's state
	    AL = new state (00h ON, 01h OFF, 02h AUTO)
	AH = 02h Weitek coprocessor support
	    AL = subfunction
		00h get Weitek support state
		    Return: AL = status
				bit 0: Weitek coprocessor is present
				bit 1: Weitek support is enabled
		01h turn on Weitek support
		02h turn off Weitek support
     --- v4.20-4.41 only ---
	AH = 03h Windows support???
	    AL = subfunction (00h, 01h)
	AH = 04h print copyright notice to standard output
		 (using INT 21/AH=09h)
	AH = 05h print available report
		 (the one shown when running EMM386 from the DOS prompt)
SeeAlso: #01513 at INT 21/AX=4402h/SF=02h,#02617 at INT 2F/AX=12FFh/BX=0106h