--- contributions\modules\linktocontent\linktocontent_util.inc	2007-04-18 21:54:02.486640000 +0200
+++ linktocontent_util.inc	2007-04-18 21:45:48.065697600 +0200
@@ -66,17 +66,13 @@
   $content = file_get_contents($plugin_reg, FALSE);
   _linktocontent_install_check_content($content);
 
-  // check whether plugin already exists in plugin_reg.php
-  if (strpos($content, '// linktocontent.module: '.$plugin) !== FALSE) {
-    drupal_set_message(t('The plugin %plugin has been already installed.',
-      array('%plugin' => $plugin)));
-    drupal_goto('admin/build/modules');
-  }
-
-  $insert_pos = strpos($content, 'return $plugins;');
-  if ($insert_pos !== FALSE) {
-    $content = substr($content, 0, $insert_pos - 1) . $insert . substr($content, $insert_pos);
-    _linktocontent_install_write($plugin_reg, $content);
+  // check if plugin already exists in plugin_reg.php
+  if (strpos($content, '// linktocontent.module: '.$plugin) === FALSE) {
+    $insert_pos = strpos($content, 'return $plugins;');
+    if ($insert_pos !== FALSE) {
+      $content = substr($content, 0, $insert_pos - 1) . $insert . substr($content, $insert_pos);
+      _linktocontent_install_write($plugin_reg, $content);
+    }
   }
 }