It’s often a crack, keygen, or patch designed to bypass the legitimate license activation for Grass Valley’s EDIUS 7 video editing software.
Contact Grass Valley support — they may help recover it if you have proof of purchase. edius 7 activator
Bottom line: I can’t provide a review of an activator because using one is unsafe and illegal. I strongly recommend using the official software instead. It’s often a crack, keygen, or patch designed