Failed to instantiate CLSID_VirtualBox w/ IVirtualBox, but CLSID_VirtualBox w/ IUnknown works.
PSDispatch looks fine. Weird.
返回 代码: E_NOINTERFACE (0x80004002)
组件: VirtualBoxClientWrap
界面: IVirtualBoxClient {d2937a8e-cb8d-4382-90ba-b7da78a74573}