Yesterday I was trying to install the adb drivers on my work computer, which runs Windows XP. Naturally, I tried the steps I posted up in a previous article but when it tried finding the drivers I got an error saying “Cannot install this hardware” because it could not find the necessary software. I correctly assumed that the problem was with the drivers themselves (which worked on my home XP install), and a quick search led me to a topic on XDA-Developers where one of the users has uploaded working ADB Drivers for HTC phones.
sh500 on XDA-Developers. That’s the post which contained the working drivers.