Before installing drivers that are in a ZIP or RAR archive file, you must extract them. The ZIP format is supported automatically on all Windows computers running XP and any later versions. The RAR format requires special software to open. We recommend 7-Zip, which you can download here: http://www.7-zip.org/download.html.
When you've opened the archive file, extract the contents in to a folder on your desktop.
To install the files from an archive or folder, the first thing you need to look for is a "Setup.exe" file (or something similar). Running this will launch the installation of the driver package.
If there is no "Setup" file, look for an "Inf" file (ie, Driver.inf) and try right-clicking on it and choosing "Install". This will launch Windows' own driver installation process.