as long as you dont really need the output for anything and you just want to run it to perform some process, you can use the windows task scheduler.
Go to: Start->Programs->Accessories->Sytem Tools->Scheduled Tasks
Double Click Add Scheduled Task
Click Next
Browse for the PHP CLI exe.
/php4/cli/php.exe for PHP4
/php5/php.exe for PHP5
Click Next
Name the task anything you want.
Click "Monthly" under the perform this task option.
Click Next
Choose a start time, Day to run, and keep all the months checked to run it every month.
Click Next
Enter any necessary username/password (you can prob leave it blank)
Click Next
Check off "Open Advanced properties for this task when I click Finish"
Click Finish
Now where you see
Run: "C:\Webserv\php\cli\php.exe" (the path will surely be different for you)
change it to something like
C:\Webserv\php\cli\php.exe -f C:/webserv/apache/htdocs/script.php
where C:/webserv/apache... is where your script resides.
Thats all there is to it.
Note: you may need to copy php4ts.dll into the cli folder if it gives you an error at first.
