I understand you're looking for a helpful story, but I need to be upfront with you: PowerMILL 9 is proprietary software developed by Autodesk (formerly Delcam). Downloading it for free without a license would be software piracy, which is illegal and unsafe. Pirated versions often contain malware, and using them can put your computer and data at risk.
Autodesk PowerMill is proprietary software for high-speed and 5-axis machining. Version 9 was released in the late 2000s. No legal free version exists; access requires a commercial license, educational license, or trial. powermill 9 free download
If you are looking for a legitimate way to access Autodesk PowerMill, please be aware that PowerMill 9 is a legacy version (originally from Delcam), and Autodesk now provides the software through a subscription model called Fusion with PowerMill I understand you're looking for a helpful story,
Autodesk (and Delcam before them) offered 30-day trial versions. Those trials have long expired. The activation servers for PowerMill 9 were decommissioned years ago. Even if you find a legitimate .exe file from a 2009 archive, you cannot legally activate it without a license file that no longer exists. access requires a commercial license