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diff --git a/offapi/com/sun/star/deployment/XPackageInformationProvider.idl b/offapi/com/sun/star/deployment/XPackageInformationProvider.idl
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+
+#include <com/sun/star/uno/XInterface.idl>
+#include <com/sun/star/uno/Exception.idl>
+
+module com { module sun { module star { module deployment {
+
+/** Objects implementing this interface provide an URL to the root of
+    an installed package.
+
+    @since OOo 2.3
+*/
+interface XPackageInformationProvider
+{
+    /** get Package information for a specific extension.
+
+        @param extensionId
+               the unique identifier of an extension. The service looks for
+               an installed package with the given id and returns the URL to
+               the root of the package. If the service can not find a matching
+               package, an emty string will be returned.
+    */
+    string getPackageLocation( [in] string extensionId );
+
+    /** check if there are updates available for an extention.
+
+        @param extensionId
+               the unique identifier of an extension. When the extensionId is empty,
+               the service looks checks all installed extensions for a newer version,
+               otherwise the service looks for updates for an installed package with
+               the given id.
+       If the service finds an update for an extension, a sequence containing the name
+            and the version will be returned for each extension which has an update.
+       If the service can not find a matching package, an empty sequence is returned.
+    */
+    sequence< sequence< string > > isUpdateAvailable( [in] string extensionId );
+
+    /** returns a list of all installed extention with their version.
+    */
+    sequence< sequence< string > > getExtensionList();
+};
+
+}; }; }; };
+