Forums like CNCZone, Practical Machinist, or Reddit r/CNC sometimes maintain Google Drive links for old builds. Warning: Always scan these files with an antivirus. Older builds are prime targets for malware injection (keyloggers, ransomware).


Honesty is vital here: Because Delcam software was expensive, many hobbyists and small shops searched for "3407 link" to find a patched .dll or keygen. If you are running a commercial shop, do not use cracked software—Autodesk (who bought Delcam in 2014) actively audits companies, and the legal fees are massive.


If you are searching for this link because you must open an old file, but you cannot find the build, here are three modern alternatives:

This is the core question. Autodesk no longer hosts Delcam PS Exchange 3407 publicly. Autodesk now distributes Autodesk Manufacturing Data Exchange Utility (the successor to PS-Exchange).

However, if you have a legacy maintenance contract or a perpetual license, here is where to look:

Delcam PS-Exchange 3407 is a data-exchange/transformation tool used in CAM/CAD workflows to convert, map and transfer part, toolpath, and machine data between Delcam (now part of Autodesk) systems and other manufacturing software or machine controllers.