public void AutoOpen() { ComServer.DllRegisterServer(); ExcelIntegration.RegisterRtdWrapper(RtdServer.ServerProgId, null, new ExcelFunctionAttribute { Name = "rtdWrapperFast", Description = "Get the real-time data item", IsExceptionSafe = true, IsThreadSafe = false }, new List <object> { new ExcelArgumentAttribute { Name = "First topic string" }, new ExcelArgumentAttribute { Name = "Second topic string" }, }); }