If express tools are not available with AutoCAD software pack. How we can get the express tools?

How to get express tool if not available in Auto Cad software pack is that:

1.    1  Check the support file search path

2.   2.  Load the Express Tools CUI File 

3.   3 . Uninstall and Reinstall Express Tools 

4.    4. Reset AutoCAD to Defaults

5.    5. Reinstall AutoCAD