ext_localconf.php

<?php

$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tstemplate.php']['linkData-PostProc']['tx_realurl'] = 'EXT:realurl/class.tx_realurl.php:&tx_realurl->encodeSpURL';
$TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_content.php']['typoLink_PostProc']['tx_realurl'] = 'EXT:realurl/class.tx_realurl.php:&tx_realurl->encodeSpURL_urlPrepend';
$TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['checkAlternativeIdMethods-PostProc']['tx_realurl'] = 'EXT:realurl/class.tx_realurl.php:&tx_realurl->decodeSpURL';
$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearPageCacheEval']['tx_realurl'] = 'EXT:realurl/class.tx_realurl.php:&tx_realurl->clearPageCacheMgm';

$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearAllCache_additionalTables']['tx_realurl_urldecodecache'] = 'tx_realurl_urldecodecache';
$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['clearAllCache_additionalTables']['tx_realurl_urlencodecache'] = 'tx_realurl_urlencodecache';

$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass']['tx_realurl'] = 'EXT:realurl/class.tx_realurl_tcemain.php:&tx_realurl_tcemain';
$TYPO3_CONF_VARS['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processCmdmapClass']['tx_realurl'] = 'EXT:realurl/class.tx_realurl_tcemain.php:&tx_realurl_tcemain';

$TYPO3_CONF_VARS['FE']['addRootLineFields'] .= ',tx_realurl_pathsegment,tx_realurl_exclude,tx_realurl_pathoverride';
$TYPO3_CONF_VARS['FE']['pageOverlayFields'] .= ',tx_realurl_pathsegment';

// Include configuration file
$_realurl_conf = @unserialize($_EXTCONF);
if (is_array($_realurl_conf)) {
	$_realurl_conf_file = trim($_realurl_conf['configFile']);
	if ($_realurl_conf_file && @file_exists(PATH_site . $_realurl_conf_file)) {
		require_once(PATH_site . $_realurl_conf_file);
	}
	unset($_realurl_conf_file);
}

define('TX_REALURL_AUTOCONF_FILE', 'typo3conf/realurl_autoconf.php');
if (!isset($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl'])) {
	@include_once(PATH_site . TX_REALURL_AUTOCONF_FILE);
}
unset($_realurl_conf);

define('TX_REALURL_SEGTITLEFIELDLIST_DEFAULT', 'tx_realurl_pathsegment,alias,nav_title,title,uid');
define('TX_REALURL_SEGTITLEFIELDLIST_PLO', 'tx_realurl_pathsegment,nav_title,title,uid');

// TYPO3 clean up handler
//$GLOBALS ['TYPO3_CONF_VARS']['EXTCONF']['lowlevel']['cleanerModules'][$_EXTKEY] = array('EXT:' . $_EXTKEY . '/class.tx_realurl_cleanuphandler.php:tx_realurl_cleanuphandler');

?>