virtualbox.org

I just recently installed Virtual Box (3.1.4), and I've set up a machine running Windows 7. Most things seem to be working pretty well, but I'm having trouble with the audio. I have installed the guest additions.

In the details section of the virtual machine, I've tried two settings. Host Driver: CoreAudio, Controller: SoundBlaster 16; and Host Driver: CoreAudio, Controller: ICH AC97. When I go to the control panel of Windows 7, it says no audio devices are installed.

You need to select the ICH AC97 in the settings and then download and install the drivers from realtek.com in the guest.

I have Audio Enabled, Host Driver: Core Audio; Control ICH AC97.
I downloaded the AC97 driver, unzipped to a local folder, ran the setup.exe, twice. Still reports No Device Driver. When I go to Control Panel, Hardware & Sound, Sound - manage audio devices: I get "No Audio Devices are installed."
The Multimedia Audio Controller Properties says"the drivers for this device are not installed (Code 28)
What should I try next?

***UPDATE!!!***
I looked for another driver, not on RealTek's site. I found one at http://download.cnet [goggle search for "Windows 7" AC 97 ] first CNET site listed.

I only noticed after this install that it said at the top of the window "Version 6.0.1.6305 X64" I have no idea if the prior download was only for x32.
that would be my guess.