On my Windows 7 computer, I right click a nef file and select Open With. CS6 is not listed. I browse to the CS6 icon and select it and OPEN. Nothing happens. It does not get added to the list. CS5 worked as it should. I have submitted this on a Windows forum and am getting nowhere. All updates for Adobe and Windows are installed. I can open a nef file from within PS. It is only when trying to open a file from a folder that I have a problem.
This problem is solved. The solution was to uninstall and re-install CS6. (deactivate before uninstalling)