Do a Google search on Win32 cron, it does exist but I forget the address at the momment. You can also try adding the script to Task Scheduler, assuming it only does some sort of processing and doesn't require or return input/outout. If you installed PHP in c:\php and the script is in c:\inetpub\auto+scripts, the call would be:
"c:\php\php.exe" -q "c:\inetpub\auto_scripts\my-script.php"
With any automated PHP script call, be it through cron or Task Scheduler, you're obviously limited to using only those functions and features which can run on the CGI version of PHP. The scheduler proggie needs to execute the script via the binary, it can't call the ISAPI filter or the Apache module.
Well that's not completely true, you could always write a small program or batch file which stimulates an HTTP-REQUEST call to a specific script on the server, but that would be much more difficult. HTH.
-geoff
