To mirror your Windows computer to another computer, you will need AirParrot 2 in addition to Reflector 3.
Follow the steps below to mirror your Windows computer to Reflector 3:
Be sure your computer is on the same network as the computer that has Reflector 3 installed.
Launch Reflector 3 on the computer you wish to mirror to.
On the computer you wish to mirror, you will need to install and launch AirParrot 2.
Locate the AirParrot 2 icon and select it.
Clicking the AirParrot 2 icon will present a list of available receivers.
Select the computer running Reflector 3.
Your screen will begin mirroring.