Fllowing are the activation key enterprise license for vCenter and vSphere 6.5:
This license isn’t use for commercial purposes. Please buy a license if you can!
1. Assign license for vCenter.
On vCenter Server management console, go to Menu > Administrator > Licensing > Licenses Click to “+” button to add new license.
Then click to Assets, right click to host or click to icon “Assign License” to use the new added license.
2. Assign license for vSphere.
Select “Manage > Licensing > Assign License” to add new license.