typedef struct _ETW_GUID_ENTRY
{
    LIST_ENTRY GuidList;
    volatile long RefCount;
    GUID Guid;
    LIST_ENTRY RegListHead;
    void *SecurityDescriptor;
    union
    {
        ETW_LAST_ENABLE_INFO LastEnable;
        unsigned __int64 MatchId;
    };
    TRACE_ENABLE_INFO ProviderEnableInfo;
    TRACE_ENABLE_INFO EnableInfo[8];
    EVENT_FILTER_HEADER *FilterData[8];
} ETW_GUID_ENTRY, *PETW_GUID_ENTRY;