Solution found.

Hardware acceleration was set too low.
With full hardware acceleration it is possible to start this application.

howto:
Display Poperties -> Settings -> Advanced -> Troubleshoot -> push the slider to right hand side

regards Karsten

I tried to start the application using the link http://sweethome3d.sourceforge.net/SweetHome3D.jnlp .
I've got the message "Fail to create reference rasterizer 3D Device. - D3DERR_NOTAVAILABLE". Afterwards
the application has been closed.

Second test:
I downloaded the software and installed it ...