Assuming that you need to execute some of your controller methods to do some housekeeping work, you need to set up a cron job (at, say, every 30 minutes). For this, you use task scheduler from Windows.
You configure frequency and everything, then comes the point where you set which command to run. Here, you need to download wget for windows.
You will enter the execution command like this:
C:\WINDOWS\wget.exe -q -O nul http://yoursite/controller1/method1
If you just want to run a page, then modify as per:
C:\WINDOWS\wget.exe -q -O nul http://yoursite/somepage.php
