How could I lauch an external application from my website. I know how to run a batch file from php but the batch file will not execute an external applications when it is called from php. The batch file will just do stuff like coping files inscide the www root folder. I am creating this webpage for my personal use only and I want it to have links to the programs I use the most. How could I have a link that will open iTunes on my computer for example? I am using wamp 5 on my vista computer.