1. Create a php file that calls the cron.php file: Using notepad (or whatever), paste the following into a new file:
$data = file(“http://pearl.supplychain.com/cron.php”);
you’ll need to put it inside the regular php tags, with the “less than sign” ? php at the front, and the ? “greater than sign” at the end. (I can’t seem to just type that because it is “suspicious content” and drupal doesn’t allow it)
Save it as executecron.php, into the same directory as cron.php (htdocs).
2. Set up a scheduled task that calls this regularly:
a. Open Start–All Programs–Accessories–System tools–Scheduled tasks.
b. Double-click on scheduled tasks.
c. Set up a Daily task that starts at 12:00 am and runs every half hour (or whatever) until 11:59 pm. Tell the task to “run” the following:
(On this system, php.exe is installed in C:\cms\xampp\php, but you’ll probably have to change the path).
Note: If using the machine, you’ll see the command window open for a couple seconds whenever it runs the cron task. This is rather confusing at first.
by gwerker – founded here http://drupal.org/node/37277