http://www.componentfactory.com/installhelp.php[
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The Krypton Toolkit is free but the KryptonRibbon, KryptonNavigator and
KryptonWorkspace are commercial products that require a license key for
permanent use. When you first use the commercial components you will
be asked to enter a serial key. You can choose to ignore this request and
start a 30 day trial period. Once the trial period expires you will be prompted
for the serial key each time you compile the application.