Yes, your license is your license until your subscription expires (obviously no expiration for lifetime).
If you don't have your regkey tucked safely away somewhere (recommend that you do this), simply go to the Members link on DVDFab.com
and download your regkey and activate as before.
Be certain you have wiped Fab off your old pc or at least that you do not use Fab (with live internet connections) on more than 1 pc at a time
