The safest and most reliable way to obtain the software is directly from Siemens. Visit the portal.
Once approved, download the installation package. The download usually consists of a self-extracting executable ( .exe ) file accompanied by several data files ( .001 , .002 , etc.) or a single large .ISO disc image. Ensure all segments are saved to the exact same folder on your local drive. Installation Process Download Wincc Flexible 2008 Sp3