I build an application by using ther LabView7 Express application builder. This fieldpoint VI works on the computer without any problems. When I build now an installer and install it on the target computer the application do not work. No failure message appears. Including the .iak and .dll files in the installer or manually in the application, have no effect. (RealTime Engine is included in the Installer. MAX is also installed on the Target machine.(I'am not sure if this is absolutely needed)) The VI is very simple only using the Fieldpoint assistant and a indicator (for Voltage).(And of coure a while loop) What is more needed that the application works on other computer? (All computers are using Windows XP)