A popular request is to export geometry in a Civil3D drawing to Google Earth in a KML/KMZ format. This post contains details on how to do it, with a step-by-step procedure for Civil3D. For recent versions of Civil3D, you will want to use the EXPORTKML command because it will support the most object types (including AECC objects). However it has some quirks and this procedure may help iron them out.
We have been receiving support issues ranging from program files being invisible (as in saying it can’t find a file you know is there) to outright alerts of our code being a virus. These have of course turned out to be false positives, a failure on the part of the antivirus software. A company that’s been in business for nearly 30 years does not produce viruses.