Ender client doesn't store account informations in .haven folder - there you only find cached res files and config.xml.cached which stores volume settings - other informations are at registry: HKEY_CURRENT_USER\Software\JavaSoft\Prefs\haven - if you have checked "remember me" it stores a password hash at savedtoken
Default client Connection refused: Connect is related to Java 7u45: http://www.havenandhearth.com/forum/vie ... =4&t=34101