diff --git a/lib/plugins/plugin.inc.php b/lib/plugins/plugin.inc.php
new file mode 100644
index 0000000..143c572
--- /dev/null
+++ b/lib/plugins/plugin.inc.php
@@ -0,0 +1,84 @@
+<?php
+
+class KTPlugin {
+    var $sNamespace;
+    var $sFilename = null;
+
+    var $_aPortlets = array();
+    var $_aTriggers = array();
+    var $_aActions = array();
+
+    function KTPlugin($sFilename = null) {
+        $this->sFilename = $sFilename;
+    }
+
+    function setFilename($sFilename) {
+        $this->sFilename = $sFilename;
+    }
+
+    function registerPortlet($aLocation, $sPortletClassName, $sPortletNamespace, $sFilename = null) {
+        $sFilename = $this->_fixFilename($sFilename);
+        $this->_aPortlets[$sPortletNamespace] = array($aLocation, $sPortletClassName, $sPortletNamespace, $sFilename, &$this);
+    }
+
+    function registerTrigger($sAction, $sStage, $sTriggerClassName, $sTriggerNamespace, $sFilename = null) {
+        $sFilename = $this->_fixFilename($sFilename);
+        $this->_aTriggers[$sTriggerNamespace] = array($sAction, $sStage, $sTriggerClassName, $sTriggerNamespace, $sFilename, &$this);
+    }
+
+    function registerAction($sActionType, $sActionClassName, $sActionNamespace, $sFilename = null) {
+        $sFilename = $this->_fixFilename($sFilename);
+        $this->_aActions[$sActionNamespace] = array($sActionType, $sActionClassName, $sActionNamespace, $sFilename, &$this);
+    }
+
+    function registerPage($sWebPath, $sPageClassName, $sFilename = null) {
+        $sFilename = $this->_fixFilename($sFilename);
+        $sWebPath = sprintf("%s/%s", $this->sNamespace, $sWebPath);
+        $this->_aPages[$sWebPath] = array($sWebPath, $sPageClassName, $sFilename, &$this);
+    }
+
+    function getPagePath($sPath) {
+        return sprintf('/plugin.php/%s/%s', $this->sNamespace, $sPath);
+    }
+
+    function _fixFilename($sFilename) {
+        if (empty($sFilename)) {
+            $sFilename = $this->sFilename;
+        } else if (substr($sFilename, 0, 1) != '/') {
+            if ($this->sFilename) {
+                $sDirPath = dirname($this->sFilename);
+                $sFilename = sprintf("%s/%s", $sDirPath, $sFilename);
+            }
+        }
+        return $sFilename;
+    }
+
+    function register() {
+        require_once(KT_LIB_DIR . '/actions/actionregistry.inc.php');
+        require_once(KT_LIB_DIR . '/actions/portletregistry.inc.php');
+        require_once(KT_LIB_DIR . '/triggers/triggerregistry.inc.php');
+        require_once(KT_LIB_DIR . '/plugins/pageregistry.inc.php');
+
+        $oPRegistry =& KTPortletRegistry::getSingleton();
+        $oTRegistry =& KTTriggerRegistry::getSingleton();
+        $oARegistry =& KTActionRegistry::getSingleton();
+        $oPageRegistry =& KTPageRegistry::getSingleton();
+
+        foreach ($this->_aPortlets as $k => $v) {
+            call_user_func_array(array(&$oPRegistry, 'registerPortlet'), $v);
+        }
+
+        foreach ($this->_aTriggers as $k => $v) {
+            call_user_func_array(array(&$oTRegistry, 'registerTrigger'), $v);
+        }
+
+        foreach ($this->_aActions as $k => $v) {
+            call_user_func_array(array(&$oARegistry, 'registerAction'), $v);
+        }
+
+        foreach ($this->_aPages as $k => $v) {
+            call_user_func_array(array(&$oPageRegistry, 'registerPage'), $v);
+        }
+    }
+}
+