Hi there, after I found out, that I just have to execute my OPPLUS-DE.EXE and grab the contents after unpacking from my temp dir befor cancelling the installation, I was able to alter the config.xml file the way you suggested. ;-) However, I still get a dialog window asking whether to install or to alter settings. Even with Display Level = "none". When I click install, the whole process takes place unattended as expected. When choosing to alter settings I see, that my changes in the config.xml are working. Any ideas why I still get this dialog? Regards, Chris.