WSAServiceClassInfo

typedef struct _WSAServiceClassInfoW

{ 

    LPGUID              lpServiceClassId;

    LPWSTR              lpszServiceClassName;

    DWORD               dwCount;

    LPWSANSCLASSINFOW   lpClassInfos;

}WSASERVICECLASSINFOW, *PWSASERVICECLASSINFOW, *LPWSASERVICECLASSINFOW;