Autodesk fully deprecated Land Desktop data formats by 2012. Users who need to open old LDC 2009 projects today must:

(including the Land Desktop Companion) was released over 15 years ago (around 2008). It is:

It is primarily used for land development tasks such as survey data management, grading, and site design. Slideshare Download and Availability Official Availability

This version of AutoCAD relies on older frameworks that are disabled by default in modern Windows.

No. It was discontinued after the 2011 release. The company officially recommends migrating to Civil 3D.