No, you do not. The license fee is fully covered already in your purchase. Sometimes, if your installation process is not right, error message could occur, asking for license fee. To avoid this, you need to -
1.Use the CD software or download the LATEST driver from www.avantree.com/driver to install;
2. Click "setup.exe" and follow the instruction
3. Plug DG40S in and reboot your computer
Normally, 99% laptop on the market have a built-in Bluetooth for data exchange. Pls open device management, right-click the Bluetooth to disable it.
You are suggested to plug in the Bluetooth dongle before starting the PC to avoid computer confusion.
If still not working properly, pls contact us at email@example.com.