How Can I make IRemoteAte Interface in the C++ via COM?

I am making remote client program in the C++. 

but Keysight reference code and programming guide only for C#. 

So, I need to access .dll(Keysight.DigitalTestApps.Framework.Remote.dll) using COM. 

As the Programming guide, to get(or make) ATE interface object, 

// Get ATE remote interface object
IRemoteAte remoteAte = RemoteAteUtilities.GetRemoteAte(ipAddress);

but there is no interface for RemoteAteUtilities class on the Keysight.DigitalTestApps.Framework.Remote.tlb or

Keysight.DigitalTestApps.Framework.RemoteCOM.tlb. 

Ask about How to create an IRemote Interface or access RemoteAteUtilities class? 

N5452A Version : 3.50

Development OS: Windows7 32bit