in reply to call another program from perl

What does the docs for "C:/Users/Desktop/file.exe" say? Will this program accept input through STDIN, files, pipes or command line options? Perhaps it expects voice commands and then you will have to play it a sound file!

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James