For the modern Reflex XTR² version, the activation process has been simplified to allow for operation without the traditional hardware security key:
If you are running Reflex XTR² on Linux (via PlayOnLinux) or Mac (via Boot Camp), the physical USB interface often fails to communicate properly. In these cases, an activation code is required to run the software without the hardware dongle. reflex+xtr+activation+code+better
Once your simulator is activated, follow these steps to achieve "better" performance and more realistic flight: For the modern Reflex XTR² version, the activation
Maximizing Reflex XTR Performance: Why a Genuine Activation Code is Better For the modern Reflex XTR² version