Executing .exe files Issues

Hi, PHP Window Users: I have a snippet of code as in the following: <?php $filename="Test123.txt"; shell_exec("C:\Inetpub\wwwroot\hello.exe -f$filename") or die ("Failed"); ?> The hello.exe was written in C and is meant to produce 6 files. The issue here is that when I tried to run the PHP here, I keep on seeing "Failed". Am I not supposed to execute exe files with this method? Any tip on this would be great. Alice _________________________________________________________________ Express yourself with gadgets on Windows Live Spaces http://discoverspaces.live.com?source=hmtag1&loc=us