I tried copying over serial.no and license.key from our running version but on the install I recieve: Found old configuration file under destination directory /usr/local/lsws. To upgrade, press 'Enter', current configuration will not be changed. To reinstall, press 'R' or 'r'. To change directory, press 'C' or 'c'. Would you like to Upgrade, Reinstall or Change directory [U/r/c]? U License key and serial number are available, testing... ./install.sh: line 41: bin/lshttpd: cannot execute binary file Contacting licensing server ... ./install.sh: line 62: /home/root2/lsws-4.1.1/bin/lshttpd: cannot execute binary file [ERROR] Sorry, installation will abort without a valid license key. For evaluation purpose, please obtain a trial license key from our web site http://www.litespeedtech.com, copy it to this directory and run Installer again. If a production license has been purchased, please copy the serial number from your confirmation email to this directory and run Installer again. NOTE: Please remember to set ftp to BINARY mode when you ftp trial.key from another machine. [root@linuxcp19432 lsws-4.1.1]# The license is from our 4.0.12 installation, does 4.1 require new license?