When you install, upgrade, or move certain licensed programs in the keyed set of products, you must install software license keys.
Software license keys are designed to regulate the use of priced
licensed programs. You must install these keys when you install, upgrade,
or move certain keyed, licensed-enabled packaged products. You might be required
to install these keys when you change software machine groups, add additional
licenses, or purchase new software that requires a license key. 
IBM provides a 70-day trial period for certain keyed IBM products during which you can try a product without a key. However, after the 70-day trial period, you must load a license key to continue to use the licensed program. The 70-day period starts from the day of the first use of the IBM® licensed program.
If you have lost your license key or need an emergency license key, you can order these through the software key center for your country or region. For these special situations, IBM can ship the license key through electronic mail (e-mail), telephone, fax, or Internet delivery.
With each keyed product that you order, you will receive a software license key sheet.
Each keyed product or feature has its own key. You can add license
key information by using the Work with License Information (WRKLICINF) command.
For instructions, see Add license key information.