If you have a previous version of AutoCAD Land Desktop installed on your system, you can install AutoCAD Land Desktop 2009 and keep other versions of the program on the same system. This is called a side-by-side installation. If you've purchased an upgrade version of AutoCAD Land Desktop, you are required to uninstall the previous version within 120 days of installing AutoCAD Land Desktop 2009. See your license agreement for more information.
In this section, you learn about locating customized files.