diff -ru typo3_orig/sysext/setup/mod/index.php typo3_new/sysext/setup/mod/index.php
--- typo3_orig/sysext/setup/mod/index.php	2010-12-16 14:17:11.000000000 +0100
+++ typo3_new/sysext/setup/mod/index.php	2010-12-16 14:28:50.000000000 +0100
@@ -302,6 +302,15 @@
 		);
 		$this->doc->table_TR = '<tr>';
 		$this->doc->table_TABLE = '<table border="0" cellspacing="1" cellpadding="2" class="typo3-usersettings">';
+
+        // Hook for changing the init settings form
+        if (!empty ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['initSettingsForm'])
+          && is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['initSettingsForm']))	{
+			foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['initSettingsForm'] as $funcRef)	{
+                $params = array();
+				t3lib_div::callUserFunction($funcRef, $params, $this);
+			}
+		}
 	}
 
 	/**
@@ -312,6 +321,17 @@
 	function main()	{
 		global $BE_USER,$LANG,$BACK_PATH,$TBE_MODULES;
 
+        // Hook for adding a flash message at the beginning
+        if (!empty ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPreProcess'])
+          && is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPreProcess']))	{
+			foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPreProcess'] as $funcRef)	{
+                $params = array(
+                    'lang' => $LANG
+                );
+				t3lib_div::callUserFunction($funcRef, $params, $this);
+			}
+		}
+
 			// file creation / delete
 		if ($this->isAdmin) {
 			if ($this->installToolFileKeep) {
@@ -367,6 +387,17 @@
 		}
 		}
 
+        // Hook for adding a flash message at the end
+        if (!empty ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPostProcess'])
+          && is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPostProcess']))	{
+			foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/setup/mod/index.php']['flashMessagesPostProcess'] as $funcRef)	{
+                $params = array(
+                    'lang' => $LANG
+                );
+				t3lib_div::callUserFunction($funcRef, $params, $this);
+			}
+		}
+
 		if ($this->languageUpdate) {
 			$this->doc->JScodeArray['languageUpdate'] .=  '
 				if (top.refreshMenu) {