How can PHP be used to start a Windows program?

To start a Windows program using PHP, you can use the `exec()` function to execute the program with the appropriate command line arguments. Make sure to provide the full path to the program executable and handle any errors that may occur during execution.

<?php
$programPath = 'C:\\path\\to\\program.exe';
$command = "{$programPath} argument1 argument2";
exec($command, $output, $returnCode);

if($returnCode !== 0) {
    echo "Error starting program: {$returnCode}";
} else {
    echo "Program started successfully!";
}
?>