How do I add a new License key in load runner?

For LoadRunner7.0 – 7.8 Feature Pack1:1. Bring up the Controller and go to Help - About LoadRunner.
2. Click on "New License" and type in the new license key.
3. Click .
4. Close the Controller and restart it; the new license key will be in effect.

For LoadRunner 8.0:1. Close the Controller
2. Go to Start - Programs - LoadRunner - LoadRunner
3. Click on the ‘License’ menu
4. Click on ‘New License’ and type in the new license key
5. Click , and to close the window
6. Bring up the Controller again.