Just a warning for all those using Nikon Capture NX2 v 2.4.6 and Windows 7. The recent Win 7 security update KB4041681 prevented CNX2 from opening on my computer. Confirmed by uninstalling the update. Have raised the issue with Microsoft support. Case No 1404171699. You might want to watch out for this update, and right click on it to hide it, or uninstall, if it is already on your system.