What Siemens ProTool v6.0 is
may host files, these are not official and should be used with caution for professional automation. Compatibility & System Requirements siemens protool v60 download link
Because the software is completely discontinued, many automation engineers turn to third-party archives to maintain legacy machinery: What Siemens ProTool v6
Siemens does provide ProTool V6.0 as a public free download. It was commercial software that required a valid license. Distributing or downloading it from unofficial sources would likely violate copyright laws and Siemens' terms of use. siemens protool v60 download link