I am trying to set up a cron.php file to run a database cleanup every hour. This is allowing me to have a demo site and reset the database back to the original every so often. how do i get the cron to run and how do i get it to set up

I make it a habit of not running Windows on my servers, but I'd imagine you could just setup a scheduled task (Programs -> Accessories -> System Tools -> Task Scheduler) then have it execute your program (e.g., "/path/to/php /path/to/script.php")

addonchat is right. There is no cron program that you use on Windows like there is on Linux. If you want to perform something at a certain time or interval, you set up a scheduled task. See this site for a tutorial.