Aha, sounds like you have trouble with your unzip utility, it was zipped using winrar 3.8
DL latest winrar and unzip it, then run the .exe.
DL latest winrar and unzip it, then run the .exe.
The 3DRad community can be found at classdev.net.
Now also available at the main library page, at
http://www.3drad.com/addons/index.php
Thanx shadmar!