diff -NaurbB typo3_src-4.3.0.orig/typo3/sysext/install/updates/class.tx_coreupdates_installnewsysexts.php typo3_src-4.3.0.patched/typo3/sysext/install/updates/class.tx_coreupdates_installnewsysexts.php
--- typo3_src-4.3.0.orig/typo3/sysext/install/updates/class.tx_coreupdates_installnewsysexts.php        2009-11-30 09:29:42.000000000 +0000
+++ typo3_src-4.3.0.patched/typo3/sysext/install/updates/class.tx_coreupdates_installnewsysexts.php     2009-12-01 11:48:42.745164200 +0000
@@ -61,7 +61,7 @@
                        if (!t3lib_extMgm::isLoaded($_EXTKEY)) {
                                $EM_CONF = FALSE;
                                        // extension may not been loaded at this point, so we can't use an API function from t3lib_extmgm
-                               require (PATH_site . 'typo3/sysext/' . $_EXTKEY . '/ext_emconf.php');
+                               require (PATH_site . TYPO3_mainDir . '/sysext/' . $_EXTKEY . '/ext_emconf.php');
                                $description .= '
                                        <strong>' . $EM_CONF[$_EXTKEY]['title'] . ' [' . $_EXTKEY . ']</strong>
                                        ' . $EM_CONF[$_EXTKEY]['description'] . '<br />';
@@ -85,7 +85,7 @@
                        if (!t3lib_extMgm::isLoaded($_EXTKEY)) {
                                $EM_CONF = FALSE;
                                        // extension may not been loaded at this point, so we can't use an API function from t3lib_extmgm
-                               require (PATH_site . 'typo3/sysext/' . $_EXTKEY . '/ext_emconf.php');
+                               require (PATH_site . TYPO3_mainDir . '/sysext/' . $_EXTKEY . '/ext_emconf.php');
                                $content .= '
                                        <input type="checkbox" id="' . $_EXTKEY . '" name="' . $inputPrefix . '[sysext][' . $_EXTKEY . ']" value="1" checked="checked" /><label for="' . $_EXTKEY . '">' . $EM_CONF[$_EXTKEY]['title'] . ' [' . $_EXTKEY . ']</label><br />';
                        }