Request Ethernet controller driver for Sony Vaio PCV-RS 520 desktop

I had to reinstall Windows XP and everything s fine but it won't connect to the internet. When I searched the Device Manager, the Ethernet Controller is missing the driver. I can't update it due to not being able to connect to the internet. I tried to uninstall it and reinstall it but it still has a yellow question mark by it. Please help me find the right driver. I have searched the internet on my laptop but have not found it yet.
 
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