Audio codec is missing when playing video file

Vista Home Premium with service pack 1.
I got a .wmv file and tried to play it in Windows Media Player:
But got an error "an audio codec is needed to play this file"

The Vista showed I may need Sipro Lab Telecom ACELP.net(130).

Anywhere I can download this codec?

I have no problem in playing this file in my XP SP2 pc.

Alan T <alan_NO_SPAM_pltse@yahoo.com.au> typed:
> Vista Home Premium with service pack 1.
> I got a .wmv file and tried to play it in Windows Media Player:
> But got an error "an audio codec is needed to play this file"
>
> The Vista showed I may need Sipro Lab Telecom ACELP.net(130).
>
> Anywhere I can download this codec?

Install Service Pack 2 for VISTA.

> I have no problem in playing this file in my XP SP2 pc.

Install Service Pack 3 for XP.

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