INT 33 - MS MOUSE - GET VERSION STRING                                          
	AX = 006Dh 'm'
Return: ES:DI -> Microsoft version number of resident driver (see #03187)
Notes:	also supported by Logitech, Mouse Systems, Kraft, and Genius mouse
	  drivers
	the Mouse Systems 7.01 and Genius Mouse 9.06 drivers report their
	  Microsoft version as 7.00 even though they do not support any of the
	  functions from 0025h through 002Dh supported by the MS 7.00 driver
	  (the Genius Mouse driver supports function 0026h, but it differs
	  from the Microsoft function)
	the TRUEDOX 4.01 driver reports its version as 6.26 through this call,
	  but as 6.24 through AX=0024h
	There seems to be no reliable method to distinguish MS MOUSE before
	  3.00 from mouse drivers of other vendors.
	Some releases of the MS MOUSE 6.00 erroneously return 6.01 instead of
	  their true version number.  In this case, a DI value of 01ABh can
	  be used to still detect a 6.00 driver.
	For returned versions 6.02+, INT 33/AX=0024h should be used to retrieve
	  more accurate version data. 
	True MS MOUSE drivers can also be identified by magic numbers in
	  their copyright message, stored in the driver's segment (ES).
	  These can be found by scanning the first 2 Kb of the mouse 
	  driver's segment for a string like: [new since 7.00+] 
	  "** This is Copyright 1983[-19xx] Microsoft ***" with the
	  magic number stored one byte after the signature string.
SeeAlso: AX=0024h,AX=004Dh,AX=006Ah,AX=266Ch


Format of Microsoft version number:
Offset	Size	Description	(Table 03187)
 00h	BYTE	major version
 01h	BYTE	minor version (BCD(Binary Coded Decimal) A method of data storage where two decimal digits are stored in each byte, one in the upper four bits and the other in the lower four bits.  Since only the values 0 through 9 are used in each half of a byte, BCD values can be read as decimal numbers on a hexadecimal display of memory or a file.)


(Table 04087)
Values for Microsoft MOUSE copyright string magic numbers:
 5564h	version 3.00..6.00	(for reported versions up to 5.03, and 6.00)
 557Ch	version 6.01Z..6.24	(for reported versions 6.01..6.24)
 E806h	version 6.25		(for reported version 6.25)
 EB02h	version 6.26..7.04	(for reported version 6.26..7.04)
 0800h	Integrated driver 1.0+	(for reported version 9.x+)
Note:	Versions above 7.04 (except for integrated mouse drivers) have a magic
	  number representing their version number, e.g. 0507h for version 7.05