Dear all, I wonder how I could extend the language by adding new node types. I did not find any hint on the web. Regards, Miao Wang, Software Engineer Valista^® Ltd. Glencormack Business Park, Kilmacanogue, Co Wicklow, Ireland tel 353-1-276 4518 353-1-276 4518 . mob 00353863542270skype wangmiao1011 web www.valista.com <http://www.valista.com>