Thank you very much. That works.
Should be stay here:
http://www.sweethome3d.com/faq.jsp#installation
[:)]

Hello,

today i tried to install the newest Version 7.0.2 over command line in 64 bit.

All Parameters are visible with "SweetHome3d-7.0.2.exe" /?

First i started with the parameter "/SAVEINF="SweetHome3D.inf"
Installed in "64-bit" - all ok. After that i uninstalled it.

Next i tried with ...