I have a task that PHP (or any server-side scripting language) isn't practical for. It involves a lot of file I/O, processing, etc. and it will execute a lot faster using the program I made in C instead of PHP.
Do any hosts allow you to upload your own EXE files and run them on the server using PHP's exec, shell_exec, etc. functions?
Do you need a dedicated server to do this?
Also, I don't know if Facebook's PHP HipHop is out yet, but I really don't want to use that.