diff --git a/filter/mediaplugin/db/install.php b/filter/mediaplugin/db/install.php
new file mode 100644
index 00000000000..f1e08f6a2d9
--- /dev/null
+++ b/filter/mediaplugin/db/install.php
@@ -0,0 +1,35 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Media filter post install hook
+ *
+ * @package   filter_mediaplugin
+ * @copyright 2010 Petr Skoda {@link http://skodak.org}
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+function xmldb_filter_mediaplugin_install() {
+    global $CFG;
+
+    //enable by default in new installs and upgrades (because we did not have version.php before)
+    // but only if insecure swf embedding is off - we definitely do not want to open security hopes on existing sites
+    if (empty($CFG->filter_mediaplugin_enable_swf)) {
+        filter_set_global_state('filter/mediaplugin', TEXTFILTER_ON);
+    }
+}
+
diff --git a/filter/mediaplugin/version.php b/filter/mediaplugin/version.php
new file mode 100644
index 00000000000..907733d3577
--- /dev/null
+++ b/filter/mediaplugin/version.php
@@ -0,0 +1,26 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Media filter
+ *
+ * @package   filter_mediaplugin
+ * @copyright 2010 Petr Skoda {@link http://skodak.org}
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$plugin->version = 2010070900;