Run a program

Hi! I'd like to be able to run a program from a php-script. I've tried running the following command, and it works when I run it from the Run-dialog: D:\Cygwin\bin\bash.exe --login -i script.sh arg1 arg2 (the shell script runs another program (fontforge) which too runs a script) However, when I try to run the same command from a php-script nothing happens. Or rather, bash starts, but it doesn't do what it does when i run the same command from the Run-dialog. I'm not even sure if I'm using the right php-command and syntax. Could you please tell me how to do? I'm on Win XP Home if that matters... Thanks in advance! /Jacob