public static extern bool ExtremeCopy_StartW(int RunType, bool bSyncOrAsyn, CopyRoutine routine);
public static extern int ExtremeCopy_StartW(int RunType, bool bSyncOrAsyn, CopyRoutine routine, IntPtr pRoutineParam);
public static extern bool ExtremeCopy_StartW(int RunType, bool bSyncOrAsyn, CopyRoutine routine);
public static extern int ExtremeCopy_StartW(int RunType, bool bSyncOrAsyn, CopyRoutine routine, IntPtr pRoutineParam);