Installing MDT 2009 typically requires a specific environment: OS Compatibility: It was originally designed for Windows XP Windows Vista
HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\Inventor\RegistryVersion13.0 ) to bypass the check. Licensing & Activation Legacy Licenses:
For those who legitimately need to use Mechanical Desktop 2009—maintaining legacy projects or accessing old file formats—safer options include:
