Kordil AcadTRK is a series of open source programs, menu and mapping tools for all AutoCAD versions and CAD tools which supports AutoLISP Languages (such as BrisCAD). All are fully customizable and editable and the tools consist of several programs connected to a pull-down and icon menus. The tools are mostly based on construction surveying, land surveying, and some useful enhancement for AutoCAD. It supports AutoCAD versions from 12th to the current version. Installation was made as easy as copying and pasting a command (shipped with the program) to the command prompt after the installation wizard.
Please visit website for latest version
http://www.kordil.net