VOCALOID Authorizer is dedicated to VOCALOID 5 serial codes. When it has other than VOCALOID 5 serial code, it indicates” invalid serial number(s)”.
For previous VOCALOID products authorization, please refer to the URL below;
・Activation (Authentication) of VOCALOID Products
If you are unable to find a solution in the Troubleshooting section, please use the Inquiry Form to submit an inquiry.