由於不支援指定的通訊協定，Windows Media Player 無法播放檔案

由於不支援指定的通訊協定，Windows Media Player 無法播放檔案

最近開啟Windows Media Player播放線上的影音，就會出現由於不支援指定的通訊協定，Windows Media Player 無法播放檔案。

請在 [開啟 URL] 對話方塊中，嘗試使用不同的傳輸通訊協定 (例如 "http:" 或 "rtsp:") 來開啟檔案。

可是很奇怪 選項裡面的通訊協定我全勾選了啊，怎麼還是有不支援的通訊協定勒，
唉 找了很多國內文章 幾乎都沒有解 後來我想還是找國外的吧

把錯誤訊息翻譯成英文 果然

Error message: "Windows Media Player cannot play the file because the specified protocol is not supported. If you typed a URL in the Open URL dialog box, try using a different transport protocol (for example, "http:" or "rtsp:")."

找到這個問題，其實這問題微軟本身已有解答 如連結前面說了一大堆廢話只有最後的才有用

If the above fixes don't work, you can rename the networking information folder for the Player so that it can rebuild its networking information files after you restart it.
To rename the Player networking information folder

1.Close Windows Media Player. (To do this, on the File menu, click Exit.)

2.Click Start, and then click Run.

3.In the Run dialog box, type the following (exactly as shown):%UserProfile%\Local Settings\Application Data\Microsoft\Windows MediaThis step opens the following folder on your computer:SystemDrive:\Documents and Settings\UserProfileName\Local Settings\Application Data\Microsoft\Windows Media

4.In this folder, rename the folder 10.0 to 10.0.bak. For more information about renaming folders, see To change the name of a file or folder.

5.Start the Player and try to stream the content again.

修改了名字之後，果然可以播放了ㄟ，終於可以聽線上廣播了 呵呵