Autodesk Mechanical Desktop 2009 _verified_ Download Link -
Even if you possess the original installation media (CD/DVD) or a valid installer file, running Mechanical Desktop 2009 on a modern computer introduces severe technical roadblocks:
If you are looking for specific, older Autodesk software, it is highly recommended to reach out to an official Autodesk reseller to inquire about legacy support options. If you'd like, I can: autodesk mechanical desktop 2009 download link
Historically, Autodesk provided a dedicated download link specifically for Inventor users who needed to migrate files. This installer was specifically modified to sit alongside newer versions of Inventor (such as Inventor 2010 through 2012). Even if you possess the original installation media
If you manage to find your original installation media, running Mechanical Desktop 2009 on a modern computer presents severe compatibility challenges. If you manage to find your original installation
Select and choose the folder containing your MDT .dwg files.