The latest Topas 4.2.0.2 works with a new network licencing system. 1) Install Topas 5.0 from P:\EXP\MS\Topas-5.0 2) In the task bar along the bottom towards the right, click on the new little round grey icon containing a hook-like symbol....."No CmContainer connected" 3) In the application that appears, click on WebAdmin (bottom right hand corner) 4) In the Code Meter web administration page that appears in your web browser, click on configuration (then network if necessary) 5) Add pcfitch or 172.24.4.88 to the list of places to search. Topas should now work, downloading a license from the server. [6)] It's probably worth updating the Code Meter runtime software to the latest version, by downloading it from www.wibu.com.