idl

import "oaidl.idl";
import "ocidl.idl";
    [
        object,
        uuid(D04CBAD4-B97F-4B32-A54B-48EB023395E8),
        dual,
        helpstring("ITestServerApp Interface"),
        pointer_default(unique)
    ]
    interface ITestServerApp : IDispatch
    {
        [id(1), helpstring("method Test1")] HRESULT Test1([out, retval] ITestServerApp **pVal);
        [id(2), helpstring("method Test2")] HRESULT Test2([out, retval] VARIANT *pVar);
        [propget, id(3), helpstring("property MyProp1")] HRESULT MyProp1([out, retval] long *pVal);
    };
    [
        object,
        uuid(BB5DD9CF-CB30-40A6-8D59-925ACFF4DAA4),
        dual,
        helpstring("IPippo Interface"),
        pointer_default(unique)
    ]
    interface IPippo : IDispatch
    {
        [id(1), helpstring("method Method1")] HRESULT Method1([out, retval] IPippo **val);
        [propget, id(2), helpstring("property MyProp1")] HRESULT MyProp1([out, retval] long *pVal);
    };

    [
        uuid(1728B2B9-B2EE-4657-8181-AB7B38AB847A),
        version(1.1),
        helpstring("TestServer 1.1 Type Library")
    ]
    library TESTSERVERLib
    {
        importlib("stdole32.tlb");
        importlib("stdole2.tlb");
        importlib("msado15.dll");

        [
            uuid(398C2A35-35FE-4C20-84DA-46A6CF1724BA),
            helpstring("TestServerApp Class")
        ]
        coclass TestServerApp
        {
            [default] interface ITestServerApp;
        };
        [
            uuid(47D38FBE-C5A2-4C9C-8EF4-4AFD822AB26D),
            helpstring("Pippo Class")
        ]
        coclass Pippo
        {
            [default] interface IPippo;
        };
    };