Hi Francisco!, you can´t currently load external components dynamically. All external components you want to use in your interface must be declared when Iguax is deploying. For example if you are deploying Iguax in an applet you have to put all external components you want to use in the archive tag of the applets definition. <applet name="IguaxApplet" id="IguaxApplet" archive="iguax.jar, external-component1.jar, ..., external componentN.jar" code="com.telvent.iguaxdroy.IguaxDroy" width="100%" height="100%" mayscript> <PARAM name="Load" value="main.xml"> <PARAM name="Language" value="es_ES" > </applet>