[Closed] UnRegister a Menu

I’m having a problem with MenuManager in a plugin but in script it would be same.
I’m registering a menu in a plugin. When Max closes I always remove the menu using UnRegisterMenu() and UpdateMenuBar(). If I uninstall the plugin (delete the plugin dll) and restart Max, it’s still there (with the missing actions) so I have to delete it in the Customize User Interface Tool.

Is there a way to unregister properly a menu so that it will be really removed ?