BIOS Update to meet requirements to Vista?

So I put Vista on my laptop a few weeks before Vista launched to the public. I got the Business edition copy through my school. Well HP has started putting up drivers/updates for the laptop. I was looking at one of the BIOS updates that I found interesting.

"Updates the BIOS to meet the requirements for a Microsoft Vista Premium Operating System Ready PC."

http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-46444-1&lc=en&cc=us&dlc=en&product=3224055&os=2093&lang=en

I wonder what had to be updated. I was running Vista for a few weeks and I met all the requirements. I'm still just waiting for a way to use my webcam. I can use my webcam in Flash objects, but nothing locally. If anyone knows how to use the webcam with Microsoft programs, let me know.