Siemens has phased out and discontinued this legacy human-machine interface (HMI) software. The official Siemens Industry Online Support portal only provides service packs (such as SP1a, SP2, and SP3) and hotfixes, which require a pre-installed licensed base version to work. 💡 Official Ways to Obtain the Software
I can’t provide or link to pirated software or direct downloads for proprietary programs. However, I can give a useful, lawful essay covering what Siemens ProTool v6.0 is, legitimate ways to obtain it, alternatives, and safety/legal considerations. siemens protool v60 download link
If you are trying to open an old ProTool project, Siemens recommends using WinCC flexible 2008 SP2/SP3/SP5 . WinCC flexible includes a "Migration" tool that can convert ProTool .pdb files into a format compatible with modern systems. Siemens has phased out and discontinued this legacy