ct);
        
        ULONG ( STDMETHODCALLTYPE *AddRef )( 
            IInternetProtocolSinkStackable * This);
        
        ULONG ( STDMETHODCALLTYPE *Release )( 
            IInternetProtocolSinkStackable * This);
        
        HRESULT ( STDMETHODCALLTYPE *SwitchSink )( 
            IInternetProtocolSinkStackable * This,
            /* [in] */ IInternetProtocolSink *pOIProtSink);
        
        HRESULT ( STDMETHODCALLTYPE *CommitSwitch )( 
            IInternetProtocolSinkStackable * This);
        
        HRESULT ( STDMETHODCALLTYPE *RollbackSwitch )( 
            IInternetProtocolSinkStackable * This);
        
        END_INTERFACE
    } IInternetProtocolSinkStackableVtbl;

    interface IInternetProtocolSinkStackable
    {
        CONST_VTBL struct IInternetProtocolSinkStackableVtbl *lpVtbl;
    };

    

#ifdef COBJMACROS


#define IInternetProtocolSinkStackable_QueryInterface(This,riid,ppvObject)	\
    (This)->lpVtbl -> QueryInterface(This,riid,ppvObject)

#define IInternetProtocolSinkStackable_AddRef(This)	\
    (This)->lpVtbl -> AddRef(This)

#define IInternetProtocolSinkStackable_Release(This)	\
    (This)->lpVtbl -> Release(This)


#define IInternetProtocolSinkStackable_SwitchSink(This,pOIProtSink)	\
    (This)->lpVtbl -> SwitchSink(This,pOIProtSink)

#define IInternetProtocolSinkStackable_CommitSwitch(This)	\
    (This)->lpVtbl -> CommitSwitch(This)

#define IInternetProtocolSinkStackable_RollbackSwitch(This)	\
    (This)->lpVtbl -> RollbackSwitch(This)

#endif /* COBJMACROS */


#endif 	/* C style interface */



HRESULT STDMETHODCALLTYPE IInternetProtocolSinkStackable_SwitchSink_Proxy( 
    IInternetProtocolSinkStackable * This,
    /* [in] */ IInternetProtocolSink *pOIProtSink);


void __RPC_STUB IInternetProtocolSinkStackable_SwitchSink_Stub(
    IRpcStubBuffer *This,
    IRpcChannelBuffer *_pRpcChannelBuffer,
    PRPC_MESSAGE _pRpcMessage,
    DWORD *_pdwStubPhase);


HRESULT STDMETHODCALLTYPE IInternetProtocolSinkStackable_CommitSwitch_Proxy( 
    IInternetProtocolSinkStackable * This);


void __RPC_STUB IInternetProtocolSinkStackable_CommitSwitch_Stub(
    IRpcStubBuffer *This,
    IRpcChannelBuffer *_pRpcChannelBuffer,
    PRPC_MESSAGE _pRpcMessage,
    DWORD *_pdwStubPhase);


HRESULT