You shouldn't have to do that, and creating config.sys won't help in any case, as wine doesn't use it. Instead, we need to figure out why Quicken is complaining. What year Quicken is it? What version of Wine? Are you installing into a clean .wineprefix? http://appdb.winehq.org/objectManager.php?sClass=application&iId=107 lists compatibility info for many versions of Quicken, for what it's worth.