If you're interested in using Mavis Beacon 1.0.0.1, you'll need to obtain a valid product key. Here are a few options:
If you’d like, I can instead help with one of the following: Mavis Beacon 1.0.0.1 Product Key
: If the key is accepted but the program doesn't save your progress, ensure you are running the installer as an administrator. Compatibility If you're interested in using Mavis Beacon 1
: Printed on the CD/DVD sleeve or inside the box. Mavis Beacon 1.0.0.1 Product Key
On a sticker inside the CD/DVD jewel case or on the back of the printed manual.