Compaq presario 12XL521A, Win XP and some features

[Israel Giron]

I installed WinXP Pro in my Compaq Presario 12XL521A, but
some of it features like the microphone and the internet
zone buttons on it are not recognized. The same thing
succeded with the hqrdware sound buttons.

I have tried to find extra drivers for this features, but
they are not available and the features are not workig
yet.

Have you seen this before?
Is any solution availabe?

Thanks and best regards.
Israel - Caracas, Venezuela.