Vmware Executing A Php Script

The deal is, I have a PHP sms gateway script that when I run the script it will send me an sms, and depending on the url variables it will send me a specific message. The script sits on an apache webserver.

I need to have this run as a VMWare alarm in VIC(which runs on a management server which is win xp). At the moment I am doing it very dodgy and having it run this script:

c:\windows\system32\cmd.exe /c c:\alarm.bat "xxx Server is offline"

Then in that bat file it's something like:

iexplore http......../php/sms/script.php?msg=%

Now it kind of works, but I know there must be a better way of doing this, currently after the script runs 3 or 4 times, it stops working.

Does anyone have any ideas as to how to remotely execute a php script on a webserver from a windows application.

Any help is much appreciated,
Cheers.

Since the first thing that came to mind was a cron job that scheduled wget in a linux machine, I went googling and found http://gnuwin32.sourceforge.net/packages/wget.htm which along with the windows task scheduler may be a solution. Just guessing though, and I've never used wget for windows.