If you manage to secure a download, follow these steps to ensure the software actually works:

Finding a reliable download for ProTool v6.0 can be challenging because Siemens has officially moved the product into the "discontinued" phase of its lifecycle. The History and Purpose of Siemens ProTool v6.0

Ensure you have the correct drivers for your communication cable (e.g., PC Adapter USB, MPI, or Profibus). Why You Might Need WinCC Flexible Instead

Siemens rarely offered "trial" versions of ProTool. Most downloads you find are the full installation files that require a valid License Key (usually provided on a yellow floppy disk or a USB transfer).

You may need an "Export-restricted" account to download older industrial software. 2. Industrial Automation Forums and Archives

ProTool was the primary configuration tool for Siemens HMI systems throughout the late 1990s and early 2000s. It was designed to program: Such as the TD17.