RBIL61 - INT 2F - MS-DOS 7 kernel - GET/SET ??? {undocumented}

INT 2F U - MS-DOS 7 kernel - GET/SET ???                                        
	AX = 1690h
	ES:BX -> ???
Return: ES:BX -> ??? data (see #02722)
SeeAlso: AX=1611h,AX=1614h


Format of MS-DOS 7 kernel ??? data:
Offset	Size	Description	(Table 02722)
 00h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	-> ??? data (appears to list the installed drivers)
 04h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	-> ??? (value passed in via ES:BX is stored here)