If you find yourself searching for license keys just to keep an old box running, it might be time to consider modern alternatives that are free and more secure:
While there are many GitHub repositories and Gists that share license keys for various VMware products, finding a working, "hot" key specifically for on GitHub can be difficult because most current repositories focus on newer versions like 6.x, 7.x, and 8.x. Common Sources for VMware Keys on GitHub esxi 55 license key github hot