Why not? I think they could deprecate the interface and replace the implementation with wherever the new thing is (config files?) transparently. Make Visual Stu

Why not? I think they could deprecate the interface and replace the implementation with wherever the new thing is (config files?) transparently. Make Visual Studio emit warnings for a version or two, then errors (and LTS the last Visual Studio version that supports it until official EOL). They're not going to do that because it's not important to them (and the registry is a bit of an icon at this point).