I was able to fix this by searchign through the registry for Visual DDK. It had a bad path to the debugger install. However, why isn’t there a way to fix the config from the GUI? I remember the dialog appearing, but it only appeared once and I could not find it. Plus, upon uninstall, the bad settings were still in the registry.
Also, now that it does work, it just hangs Visual Studio. Responsiveness is very very slow.