Index: wysiwyg.admin.inc
===================================================================
--- wysiwyg.admin.inc	(revision 201)
+++ wysiwyg.admin.inc	(working copy)
@@ -71,6 +71,7 @@
     'css_setting' => 'theme',
     'css_path' => NULL,
     'css_classes' => NULL,
+    'convert_urls' =>TRUE,
   );
   settype($profile, 'object');
 
@@ -265,6 +266,14 @@
     '#description' => t('If enabled, the default paste function (CTRL-V or SHIFT-INS) behaves like the "paste from word" plugin function.'),
   );
 
+  $form['output']['convert_urls'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Dont\'t convert URLs'),
+    '#default_value' => $profile->settings['convert_urls'],
+    '#return_value' => 0,
+    '#description' => t('If enabled, TinyMCE tries to fix URLs entered for links. If disbled it leaves the entered URL as it is.<br />Modules for internal linking (like pathfilter module) need this feature  to be deactivated.'),
+  );
+
   $form['css'] = array(
     '#type' => 'fieldset',
     '#title' => t('CSS'),
Index: editors/tinymce.inc
===================================================================
--- editors/tinymce.inc	(revision 201)
+++ editors/tinymce.inc	(working copy)
@@ -139,6 +139,9 @@
   if (isset($config['verify_html'])) {
     $init['verify_html'] = $config['verify_html'];
   }
+  if (isset($config['convert_urls'])) {
+    $init['convert_urls'] = $config['convert_urls'];
+  }
 
   if (!empty($config['css_classes'])) {
     $init['theme_advanced_styles'] = implode(';', array_filter(explode("\n", str_replace("\r", '', $config['css_classes']))));