Creating a COM project without IDispatch support?

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COM

Hi,

I am trying to write a sample COM.
VC++ IDE provides a wizard to create a Simple COM object.
However, it always creates the COM object with IDispatch support.

For some reasons, I need to create a Simple COM object implementing the following IDL with the following requirements:
-- Must be COM exe
-- Must not be derived from IDispatch but IUnknown only
-- Must be a singleton

// typelib filename: Sample.exe
[
  uuid(94EE69BF-4387-4078-B33F-1E9B471D128E),
  version(1.0),
  helpstring("Sample 1.0 Type Library"),
)
]

// library Sample
{
    importlib("stdole2.tlb");
    // Forward declare all types defined in this typelib
    interface ISample;
    [
      uuid(7CEBF979-C4EB-48eb-BE06-FBA1B4929FE7),
      version(1.0)
    ]
    coclass CSample
    {
        [default] interface ISample;
    };
    [
      odl,
      uuid(E3B868FC-7A58-4f28-B895-922D2BE7797F),
      oleautomation
    ]
    interface ISample : IUnknown
    {
        HRESULT _stdcall CreateTester([out, retval] IUnknown** ppTester);
        HRESULT _stdcall Initialize();
        HRESULT _stdcall Uninitialize();
        HRESULT _stdcall get_Name([out, retval] BSTR* Name);
        HRESULT _stdcall GetSettings([out, retval] IUnknown** ppSettings);
        HRESULT _stdcall GetList([out, retval] VARIANT* VarList);
        HRESULT _stdcall SetList([in] VARIANT VarList);
    };
};

I created an ATL COM project this using VC++ wizard and tried to stripping off IDispatch out of it.
However, it turned out to be too difficult job to give up.

Can someone write a COM project satisfying the above requirements please?

Thank you.

--
HaeRim Lee