There are two common ways of installing drivers. You can either start the installation program or go through the Device Manager and install the drivers manually. Unfortunately, not all drivers come with a setup program, so you are left with no choice but to do it manually. Right-click "My Computer", open "Properties" and select the Device Manager. In Windows 98, you can directly access the device manager tab. In Windows 2000, you have to select the "hardware" tab first and open the device manager located in the middle of the window.

All devices are sorted by type. If you open the desired branch, the device will be displayed (uninstalled components are typically located at the very top, marked by a yellow exclamation mark and a rough classification). Right-click the device and open "Properties". Here, you can switch to the "Driver" tab and then click "Update Driver". Next you only have to specify the path where Windows should look for the driver files.