c:\> java -jar selenium-2.31.0.jar -interactive
D:\doc\selenium>netstat -aon|findstr "4444"
TCP 0.0.0.0:4444 0.0.0.0:0 LISTENING 8972
TCP [::]:4444 [::]:0 LISTENING 8972
进程号是8972,查看是javaw占用,在任务管理器中关闭即可
D:\doc\selenium>tasklist|findstr "8972"
javaw.exe 8972 Console 1 25,100 K