It occurs a lot of time when you try to install a new hardware device on your system for which you may not have the driver cd so you start searching for getting some download links of the driver software for that device.
But even after a lot of searching you don't get the appropriate driver software for your hardware device.
But don't loose hope if you are encountered with such a situation as there as you could get the driver software for your hardware device.
Here is a smart way i read somewhere about how to find hardware device driver downloads easily.
Plug in your device first and ignore any windows message like unknown device detected.
Now open device manger control panel>>administrative tools >>computer management>>device manager.
Right Click on the Hardware device and go to properties in th context menu.
Now click the details tab and choose 'Hardware Id' ,select the last a entry copy it into the clip board and use this to search from any search engine you like to get all the information about that hardware device and download links for the hardware device.