An Applet question

Does i need the JNLPAppletLauncher class, if a
signed all unsigned jogl jars with my regular server certificate?

Another question is, where loads the used dll's to the client platform?
 

yes, the way JoGL loads dynamic libraries, you need to use JNLPAppletLauncher.  There is a lot of documentation inside the javadoc, so download the JNLPAppletLauncher from the git repository:

https://github.com/sgothel/applet-launcher

Blaine