Productivity Tracking Built into the Microsoft OS

I just published a post over at Uncover the Internet about an application called RescueTime that allows you to track what applications and websites you spend all your time on during the day.

My initial thought was that this would be an interesting feature to get built into the operating system itself. What better application to track your application and website usage than the operating system itself.

My next though though was to begin wondering if it would be possible to get this information already from some kind of log file in the system.

Does anyone know if there’s some way that can be accomplished? What interesting log file options are there available for users to comb through and get some interesting stats?

Let us know in the comments.