Format of Card Services Request Window record:
Offset	Size	Description	)
 00h	WORD	logical socket number
 02h	WORD	attributes (see #00721)
 04h	DWORD	system base adress
 08h	DWORD	size of memory window
 0Ch	BYTE	additional info
		if attributes bit ??? is set, this is the address-lines field
		otherwise, this is the access-speed field (see #00722)