Hi Bernd,
What is your installation directory?
From your previous mail, there are two paths:
set CP=C:\boxir41client\SAP BusinessObjects Enterprise XI 4.0\SL SDK\java\sl_sdk.jar
and
-Dbusinessobjects.connectivity.directory="C:\Program Files\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\dataAccess\connectionServer"
If your install directory is C:\boxir41client\..., you should update it in the -Dbusinessobjects.connectivity.directory parameter (C:\boxir41client\SAP BusinessObjects Enterprise XI 4.0\dataAccess\connectionServer).
Regards