If you don't have a key yet, the legitimate way to obtain one is through the RE:Vision Effects Web Store. Buying directly ensures you receive technical support and future update paths.
Even if you find a key that bypasses the initial check, the software “phones home” to the developer’s license server. If the key is flagged as stolen or generated, your hardware ID will be permanently blacklisted. You will then be unable to purchase a legitimate license for that machine. activation key for rsmb v6 updated