How to Register Professoinal Edition (Upgrade the Free Edition to Professional Edition)

• Purchase a license online :

You can go to our Buynow page to place your order. After the order is processed successfully, you will get a confirmation email with an order number.

• Registration

Please input your order number in the registration form to obtain the license key with which you can complete the online registration automatically or you can manually input the license key ("Help - Register").

Note:

• The price is one-time cost. There is no any annual fee.
• The same registration code CAN NOT be used on other computers.
• Duplicate Filter will create a hardware code on computer's hardware. If you need to use the software on a new computer or if for any reason your computer crashes or certain hardware changes which will make a different hardware code, please contact us to get a new registration code for free.