Activating legacy software like has become significantly more difficult because Autodesk officially discontinued support and the provision of new activation codes for versions 2016 and older as of March 10, 2025. Critical Status Update (2026)
The final string entered into the software to unlock its full perpetual capabilities. ⚠️ Important Support Notice: Lifecycle Limitations
Autodesk has officially retired activation for versions as old as 2009. Even with a legitimate "request code," the automated online activation systems generally no longer support these versions.
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