Format of LAN Manager DosReadAsynchNmPipe2 stack frame:
Offset	Size	Description	)
 00h	DWORD	-> number of bytes read
 04h	WORD	size of buffer
 06h	DWORD	-> buffer
 0Ah	DWORD	-> return code
 0Eh	DWORD	function to call on completion as function( char far *buffer )
 12h	WORD	handle
 14h	DWORD	???