quicktime pro on new MacBook pro
I have been using quicktime pro 7 for a long time and I have a license code. I recently bought a MacBook pro using OS10.13.6. All the pro features are now grayed out. I attempt to re-register but Safari says it cannot find the pro registration server. I know Apple has dropped quicktime pro but since I own a licensed copy seems that I should be able to use it. Is there any way to update my registration?
MacBook Pro with Retina display, macOS High Sierra (10.13.6), OS 10.13.6