This was included in the delivery package to streamline communication with S7 controllers.

Current users with a Software Update Service (SUS) contract may still access downloads through the Siemens Industry Online Support (SIOS) portal. wincc 60 sp4 download new

If you are a licensed user, log into the Siemens Industry Mall and search for "6AV6381-1BP06-4AX0" (the order number for WinCC V6.0 SP4). This was included in the delivery package to