/os.arch=x86 will force the installation of the 32 bit version of Sweet Home 3D under Windows 64 bit
/j3d.version=1.5.2 will force the installation of Java 3D 1.5.2 (default Java 3D version until Windows 7)
/j3d.version=1.6 will force the installation of Java 3D 1.6 (default Java 3D version from Windows 8)