The is not a myth. It is a powerful, legitimate, and safe tool available directly from Siemens. By following the official link, navigating the Windows installation hurdles, and spending an afternoon learning the expert list, you can unlock the full potential of any SINAMICS drive.
Here is where the "free" part gets tricky. Starter was designed for Windows 7. Installing on Windows 10/11 requires a few magic tricks. Sinamics Starter Free BEST Download