Thank You Ton for the reply!
But this would be just a workaround. A service does not have a FP. When it starts with a FP I assume it does not start as services but as an application. I'm going to export the service to an embedded system and therefore I want to be sure that is works as expected.
i used the tutorials
http://zone.ni.com/devzone/cda/tut/p/id/3185
http://digital.ni.com/public.nsf/websearch/21BA0F671A63A60386256CB4004DF99B?OpenDocument
to create the service out of the LV application.
Right now I think I forget any setting when building the exe with the application builder.
Stefan