Use the correct syntax to make sure you're on the right drive letter on Windows.

Author: angrybrad

src/Command.php

@@ -159,7 +159,7 @@ public function setCommand($command)
 
             // Absolute path. If it's a relative path, let it slide.
             if ($position) {
-                $command = sprintf($command[$position - 1].':\;cd %s && %s', escapeshellarg(dirname($command)), basename($command));
+                $command = sprintf($command[$position - 1].': && cd %s && %s', dirname($command), basename($command));
             }
         }
         $this->_command = $command;