Yes it does. However, we have had a couple of reports of an issue with the installer on the website. In some cases, the Adobe AIR download fails and it doesn't provide much of an explanation in the error message. If you have any trouble, you can download AIR manually at http://get.adobe.com/air/
Once that is installed, the installer on the website should work without an issue. However, if you still have an issue, you can download the Klok installer directly at: http://getklok.com/downloads/Klok2.air
. Just save the file to your hard drive and double click it to launch the installation.