if(IsFailed(r))
        goto CATCH;

    // change value: section1 { entry1 = 3 }
    r = reg.SetValue(sect1, entry1, 3);
    if(IsFailed(r))
        goto CATCH;

    // add value: section2 { entry2 = 1.1234599 }
    r = reg.AddValue(sect2, entry2, 1.1234599);
    if(IsFailed(r))
        goto CATCH;

    // get value: section1 { entry1 = ? }
    r = reg.GetValue(sect1, entry1, iVal);
    if(IsFailed(r))
        goto CATCH;

    // write to the file
    r = reg.Flush();
    if(IsFailed(r))
        goto CATCH;

    return;

CATCH:
    // Do some error handling
    return;