To download ArchiCAD 2009, you can visit the official Graphisoft website, the developer of ArchiCAD, and follow these steps:

was the 2009 release. You will need your original serial number or a hardware protection key (dongle) to activate it. 2. The "Best" Modern Fix: Compatibility Mode

In the Graphisoft ecosystem, the "2009" version of Archicad corresponds to . This version was a milestone for the software, introducing 64-bit support for Windows and the "Teamwork 2.0" BIM Server technology. Official Download & Access

So, where can you get a legitimate file? "Best" here means safe , not pirated.