请大家看看这段程序

问题： 请大家看看这段程序
描述:

我现在的自动化组件只有VC能读但ASP读出来的是0。我把IDL的代码写出来请帮我看看
错在哪：[
  object,
  uuid(39c13a54-011e-11d0-9675-0020afd8adb3),
  pointer_default(unique)
]
interface IOPCItemMgt: IUnknown
{
  HRESULT AddItems( 
    [in]                        DWORD            dwNumItems,
    [in, size_is(dwNumItems)]   OPCITEMDEF     * pItemArray,
    [out, size_is(,dwNumItems)] OPCITEMRESULT ** ppAddResults,
    [out, size_is(,dwNumItems)] HRESULT       ** ppErrors
    );
}
[
  object,
  uuid(39c13a4d-011e-11d0-9675-0020afd8adb3),
  pointer_default(unique)
]
interface IOPCServer : IUnknown
{
 HRESULT AddGroup(
    [in, string]        LPCWSTR     szName,[in]                BOOL        bActive,
    [in]                DWORD       dwRequestedUpdateRate,
    [in]                OPCHANDLE   hClientGroup,
    [unique, in]        LONG      * pTimeBias,
    [unique, in]        FLOAT     * pPercentDeadband,
    [in]                DWORD       dwLCID,
    [out]               OPCHANDLE * phServerGroup,
    [out]               DWORD     * pRevisedUpdateRate,
    [in]                REFIID      riid,
    [out,retval]              IOPCItemMgt ** ppUnk
    );