I just bought it and didn’t have any trouble in DP 7.2. I just put the key in the Components folder. I actually had a mix going where I was trying it out and decided I needed it, so I bought it, then dropped the key in the Components folder with the session still open and Bombardier said “registered to” when I open it again.
Great plugin. I thought I knew all I needed to know about compressors but I still had something to learn when I started playing with this. The wide variety of sound you can get from it is not immediately apparent. A video would not be a bad idea with this one. I’m still not sure what some of the controls are doing.