Hi Vaibhav, When string_to_object throws a BAD_PARAM exception, it is basically saying, that the IOR string is invalid. Are you quite sure, you copied the IOR dumped by the server correctly to the client? The format of an IOR is 'IOR:' followed by a series of hex digits. Line breaks/feeds spaces and so on will ruin the IOR. It looks like, you left out the leading 'IOR:' of the IOR. Yours sincerely, Bjorn