在裝入a4wmme.u32時，選擇 mcisendstring 和 mcigetreturnstring 函數。

(1) 打開設備命令：

cmdstring := "open "^moviefile^ " alias movie"
mcisendstring(cmdstring)
cmdstring := "window movie handle "^windowhandle
mcisendstring(cmdstring)
cmdstring := "window movie state no action"
mcisendstring(cmdstring)
cmdstring :="seek movie to end"
mcisendstring(cmdstring)
cmdstring :="status movie position"
mcisendstring(cmdstring)
end := mcigetreturnstring()
cmdstring :="seek movie to start"
mcisendstring(cmdstring)
cmdstring :="status movie position"
mcisendstring(cmdstring)
start := mcigetreturnstring()

(2) 播放設備命令：
cmdstring := "put movie destination at 170 120 320 240"
mcisendstring(cmdstring)
cmdstring := "play movie"
mcisendstring(cmdstring)

(3)停止并關閉設備命令：

cmdstring :="pause movie"
mcisendstring(cmdstring)
cmdstring := "put movie destination at 0 0 0 0"
mcisendstring(cmdstring)
cmdstring := "stop movie"
mcisendstring(cmdstring)
cmdstring := "close movie"
mcisendstring(cmdstring)

　　以上mci 命令可以完成基本的播放任務，可以在需要的程序位置上加入。moviefile變量中放置所要播放的mpeg文件名即可。有關其它mci 命令的具體使用，需要參閱mci 命令手冊。