Protected audio is outside this workflow
The current application does not remove DRM, bypass access controls or convert protected audio into a different protection scheme. A former tutorial title is not a promise of that function in this release.
Use an accessible original
Use a local, unencrypted source that your application can open. If you need a different copy, obtain an appropriate accessible version from its provider.
Keep editing and access separate
Audio edits and format conversion work on supported accessible inputs. No registration, activation or paid upgrade adds protection-removal capability.
The current Windows product directory lists the supported free applications. It does not offer an installer for this absent product or function.