You can find it online: https://www.mediamonkey.com/support/knowledge-base/purchasing-licensing-mediamonkey-for-windows/retrieve-a-lost-license-key/

If that doesn't work [url=https://www.mediamonkey.com/support]contact Support[/url] with details about your purchase.

Hello, I purchased MediaMonkey many years ago I bought the life time membership but over the course of a few decades and a few new computers I have no idea where my licence key is, can anyone help or tell me how I go about getting it ??

Regards
Mal