感谢N位(N>10)朋友的投递:
一个Windows Media Player11泄漏版本出来了,安装这版本,必需是XPSP2,破解方法由9down放出,请大家试用.

There is a WGA check on installation, but there are several workarounds. Here is one that i found myself and worked very good:
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WGA workaround: WinRAR needed!
-Extract installer (mpsetup.exe)
-run wmp11.exe in folder (not setup_wm.exe)
-restart your pc,
-run three other exe's in extracted folder (not setup_wm.exe)
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Test if it works, if not: do this:
-Rename wmplayer.exe in C:Program Files Windows Media Player to something else,
-Extract wmp11.exe (already in your first extracted folder), and
-copy wmplayer.exe from that folder to your program files folder

以下是简宁补充的翻译:
安装过程要求WGA正版验证,但是有几个方法可以绕过. 这里是我(原作者)发现并使用于我的电脑的一个方法:
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WGA绕过法:需要WinRAR!
-解压安装包(mpsetup.exe)
-运行解压后的wmp11.exe文件(注意不要运行setup_wm.exe)
-重新启动您的电脑
-运行解压后文件夹内其它的3个.exe执行文件(注意，这里依旧不要运行setup_wm.exe)
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现在您可以测试此方法安装是否成功了,如果不成功,请做下面尝试:
-重新命名C:/Program Files/Windows Media Player/下的wmplayer.exe为任意名（编者注：当然重命名不能改变.exe后缀）
-再次解压wmp11.exe(该文件存在于您第一次解压生成的文件夹中)
-复制再次解压后的wmplayer.exe文件到C:/Program Files/Windows Media Player/下
下载:Windows Media Player 11 build 4826
下载:Windows Media Player 11 build 4826 源自9down的地址1
下载:Windows Media Player 11 build 4826 源自9down的地址2
下载:Windows Media Player 11.0.5358.4826
本地下载:Windows Media Player 11 build 4826