Using PHP to perform Tasks on the computer provides many options. With PHP you can for example connect to different databases, read and process files, send mail, print files etc. PHP is quite easy to learn and is free for download. To read more about PHP and download the package go here.
After installing and configuring PHP in your way, it is easy to call your scripts from VisualCron. In the Command field, enter the full path to the php.exe file, normally "C:\php\php.exe". In the Arguments field you can enter several parameters to php.exe, for example "-q yourscript.php". This executes the script in a quiet mode and no window is shown.
Watch out if you use relative links in your script, if you do that you may want to specify a Working directory so that script knows where to find the relative paths.
Example of executing a php-script in VisualCron