To upgrade WinCC V6.0 to WinCC V6.0 SP3 it is mandatory to
deinstall all WinCC V6.0 options beforehand.
Otherwise there might be errors and abortion of the SP3 upgrade
The WinCC options that WinCC V6.0 uses cannot be used for
WinCC V6.0 SP3. There are new versions of the WinCC Option that are
released for WinCC V6.0 SP3. You should install these after the
WinCC V6.0 SP3 upgrade.