If you previously owned a license but cannot find the key, you have a few options:
Common issues with VMware ESXi 5.5 license keys include:
Includes vCenter Server and features like vMotion and High Availability. Large-scale production
He never used it again. Some keys open a door. And some keys, when turned, release a subtle, patient ghost that comes to collect its due when you least expect it.
: Existing perpetual license keys for ESXi 5.5 still function as they do not have an expiration date, but they are no longer sold.
