The Corona Renderer 1.7 for 3ds Max has been supplied with an additional Hotfix, which provides some small bug fixes and some additional features to provide a better backwards compatibility.
If you want to use the latest version of the Corona Renderer for 3ds Max please go to the website corona-renderer.com/news/corona-renderer-1-7-for-3ds-max-hotfix-3-released to find out detailled information. We will support you in any way to get you renderings done. :)