ActiveX: 64-bit DLL will not uninstall properly
If the 64Bit version of axvlc.dll is unregistering, it will always delete the Win32 TypeLib instead of the Win64 TypeLib:
https://code.videolan.org/videolan/npapi-vlc/blob/master/activex/main.cpp#L159
This also happen if axvlc.dll is registering, because DllUnregisterServer is running before DllRegisterServer.
If a 32bit version is registered at the same time, the 32bit version will be unregistered instead of the 64bit.