Language integration

Firstly please excuse my ignorence of php, but I have just started using it. I am trying to write php code where one can run csound code (an extension to c that generates wav files). I have been told that you can use either system() or exec() to integrate c code, but I am still unsure how to do this. Any tips would be greatly appreciated. cheers John _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp