WindowsXP, Visual Studio 2005, VC++ and WMI Calls

> Hello list,
>
> I'm just starting with WMI and like ask you a paar questions.
>
> I've developed a little application in VC++, which tries to retrieve
> some CPU information through WMI calls. Here some code maybe
> you have seen...
>
> ...
> bstr_t cadenaSql = "Select * from
> Win32_PerfRawData_PerfProc_Process where";
> ...
> VariantInit(&vtProp2);
> hr = pclsObj2->Get(L"PercentProcessorTime", 1, &vtProp2, 0, 0);
> wcout << vtProp2.ulVal << endl ;
> VariantClear(&vtProp2);
> ....
>
> The problem I have is that when show vtProp2.ulVal receive the same
> number (percent processor time) for each process retrieved.
> (Even when I chage the value type).
>
> Any suggestion ?
>
>
> Thanks in advanced.
>
>
> Julio