INT 21 - Novell NetWare - GET OR SET DEFAULT SUPPORT MODULE                     
	AX = F25Ah subfn 86h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #02462)
	ES:DI -> reply buffer (see #02463)
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=F25Ah/SF=01h,AX=F25Ah/SF=80h,AX=F25Ah/SF=84h


Format of NetWare "Get or Set Default Support Module" request packet:
Offset	Size	Description	(Table 02462)
 00h	WORD	length of following data
 02h	BYTE	86h (subfunction "Get or Set Default Support Module")
 03h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	direction
		00h get default support module
		01h set default support module
 07h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	new module ID if setting
SeeAlso: #02463


Format of NetWare "Get or Set Default Support Module" request packet:
Offset	Size	Description	(Table 02463)
 00h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	support module ID
SeeAlso: #02462