Recently, with newer copies of Windows 7, the message Key Not Found is appearing when trying to launch our CNC Professional Software.  Through further research into the issue, I discovered that some WIN7 installation come with newer drivers for the rockey4 usb key already pre installed in windows or perhaps installed through a windows update.  The newer version of the driver package is not compatible with our software.  Our software uses specific drivers which are installed during our installation process.  However, Windows will always choose the latest drivers thus the problem.  The solution is to try to uninstall the new driver package and force windows to install the driver package we need.