If the DVI plug on the card isn't DVI-I but DVI-D then there's no analog signal you could present on a VGA plug anyway. DVI-A is something that doesn't exist on the graphics card end.
Graphics cards either implement DVI-D (D)itigal only, or DVI-I, where you get a digital and an analog copy of the same image (I)ntegrated into one single plug. From there you either use a DVI-D cable toward a digital device, a DVI-A cable toward an analog device, or a DVI-A to VGA adapter dongle and a VGA cable toward a legacy analog device.
Having said that, all DVI-VGA adapters do the same thing. Since this is high frequency analog signalling, there might be good and bad ones. Don't go too cheap.