If your firm bought a perpetual license for Civil 3D LDT Companion 2009, you might still download the original installer from Autodesk. Here’s how:
If the product isn’t visible, it has been deprecated. Autodesk purged old downloads after 2020 for any product older than 2014. If your firm bought a perpetual license for
You don’t actually need to run Civil 3D 2009 to extract data. Use this updated method: If the product isn’t visible, it has been deprecated
Since you cannot get an updated Land Desktop Companion 2009, Autodesk provides a free Data Migration Utility for modern Civil 3D. This acts as an "updated companion" by allowing you to convert all Legacy LDT 2009 data to the current Civil 3D 2026 format. This is the closest you will get to
Steps to "update" your workflow:
This is the closest you will get to an "updated download" — it does not update the software but updates your data to a modern environment.