If your organization maintains an active Autodesk Subscription or Product Design & Manufacturing Collection, you may still have rights to legacy software tools. Log into your portal. Navigate to the All Products and Services tab. Look for Inventor or your specific design suite.
You can open .dwg files created in MDT 2009 directly in Inventor 2018.
To view MDT 2009 data in other CAD applications without installing the full software, you can use the Autodesk Mechanical Desktop 2009 Object Enabler. Licensing and Activation Status autodesk mechanical desktop 2009 download link
Autodesk Mechanical Desktop 2009: Download, Installation, and Legacy Data Migration
Unlike many discontinued software products, Mechanical Desktop 2009 remains officially available for legitimate users through several Autodesk channels: Look for Inventor or your specific design suite
Known for hosting CAD utilities and sometimes providing links to legacy Autodesk patch files (e.g., SP3). Crucial Installation & Licensing Requirements
Autodesk permanently deactivated the legacy activation servers required for 2009-era products. you can download the modern successor
How to import Mechanical Desktop 2009 files into Inventor - Autodesk
If you are a student or educator, you can download the modern successor, , for free.