I am looking into running our webstart client without having to sign the jars. My main problem is that i get an access denied error when i try to read a system property that i have defined in my jnlp file, despite the fact that it says here http://java.sun.com/products/javawebstart/1.2/docs/developersguide.html that an unsigned webstart client has: Limited access to system properties. The application has read/write access to all system properties defined in the JNLP File, as well as read-only access to the same set of properties than an Applet has access to. i do not really know how to progress from here sincerely Morten Wilken