diff --git a/application/controllers/admin/parameters.php b/application/controllers/admin/parameters.php
index 133d222..a92f218 100644
--- a/application/controllers/admin/parameters.php
+++ b/application/controllers/admin/parameters.php
@@ -1,6 +1,6 @@
-<?php
+<?php defined('BASEPATH') || exit('No direct script access allowed');
 /*
- * Copyright (c) 2011 Eike Foken <kontakt@eikefoken.de>
+ * Copyright (c) 2011 Karsten Heiken, Eike Foken
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,6 +23,7 @@
 require_once APPPATH . 'core/Admin_Controller.php';
 
 /**
+ * Parameter management.
  *
  * @author Eike Foken <kontakt@eikefoken.de>
  */
diff --git a/application/controllers/admin/programs.php b/application/controllers/admin/programs.php
index 1184497..3c491a7 100644
--- a/application/controllers/admin/programs.php
+++ b/application/controllers/admin/programs.php
@@ -1,6 +1,6 @@
-<?php
+<?php defined('BASEPATH') || exit('No direct script access allowed');
 /*
- * Copyright (c) 2011 Eike Foken <kontakt@eikefoken.de>
+ * Copyright (c) 2011 Karsten Heiken, Eike Foken
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
diff --git a/application/controllers/admin/servers.php b/application/controllers/admin/servers.php
index 66c2c96..d39e648 100644
--- a/application/controllers/admin/servers.php
+++ b/application/controllers/admin/servers.php
@@ -1,6 +1,6 @@
-<?php
+<?php defined('BASEPATH') || exit('No direct script access allowed');
 /*
- * Copyright (c) 2011 Karsten Heiken <karsten@disposed.de>
+ * Copyright (c) 2011 Karsten Heiken, Eike Foken
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
diff --git a/application/controllers/admin/settings.php b/application/controllers/admin/settings.php
index 87b5783..d3da144 100644
--- a/application/controllers/admin/settings.php
+++ b/application/controllers/admin/settings.php
@@ -1,4 +1,4 @@
-<?php
+<?php defined('BASEPATH') || exit('No direct script access allowed');
 /*
  * Copyright (c) 2011 Karsten Heiken, Eike Foken
  *
diff --git a/application/controllers/admin/users.php b/application/controllers/admin/users.php
index 6ed1de9..480812c 100644
--- a/application/controllers/admin/users.php
+++ b/application/controllers/admin/users.php
@@ -1,6 +1,6 @@
-<?php
+<?php defined('BASEPATH') || exit('No direct script access allowed');
 /*
- * Copyright (c) 2011 Eike Foken <kontakt@eikefoken.de>
+ * Copyright (c) 2011 Karsten Heiken, Eike Foken
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal