Since you're looking for a free download, I must remind you that downloading software from unofficial sources can pose risks to your computer's security and potentially include malware.
Operating System: Windows XP (32-bit) or Windows 7 (32-bit) are the gold standards. While it can run on 64-bit systems via Virtual Machines, a native 32-bit environment prevents driver conflicts.
Based on user experiences with automotive diagnostic software updates, here is a story that illustrates the common pitfalls, risks, and ultimate resolution of trying to find "free" software patches, which I found described on Peugeot Central forums and French Car Forum . The Tale of the Free Update
a specific error code (like ERROR 0 or License Error ).