interface ICorDebugChain : IUnknown {
    HRESULT EnumerateFrames (
        [out] ICorDebugFrameEnum **ppFrames
    );
    
    HRESULT GetActiveFrame (
        [out] ICorDebugFrame     **ppFrame
    );
    
    HRESULT GetCallee (
        [out] ICorDebugChain     **ppChain
    );
    
    HRESULT GetCaller (
        [out] ICorDebugChain     **ppChain
    );
    
    HRESULT GetContext (
        [out] ICorDebugContext   **ppContext
    );
    
    HRESULT GetNext (
        [out] ICorDebugChain     **ppChain
    );
    
    HRESULT GetPrevious (
        [out] ICorDebugChain     **ppChain
    );
    
    HRESULT GetReason (
        [out] CorDebugChainReason *pReason
    );
    
    HRESULT GetRegisterSet (
        [out] ICorDebugRegisterSet **ppRegisters
    );
    
    HRESULT GetStackRange (
        [out] CORDB_ADDRESS      *pStart, 
        [out] CORDB_ADDRESS      *pEnd
    );
    
    HRESULT GetThread (
        [out] ICorDebugThread    **ppThread
    );
    
    HRESULT IsManaged (
        [out] BOOL               *pManaged
    );
};