Download the 32 bit or 64 bit installation here.
To upgrade an existing system you can either download and install the full setup or perform incremental updates.
To use the full setup download either the 32 bit or 64 bit installation here:
Next uninstall Open Automation Software using Add / Remove Programs from the Control Panel.
Do not delete the installation directory and the license and all configuration data will remain.
Run the new setup and start the 3 OAS Services.