IIS 7.5 applicationHost.config文件未更新

我目前正在使用Microsoft.Web.Administration(MWA)命名空间，以便调整我们的应用程序以使用新的API配置IIS 7.5. 我知道所有IIS级别的更改都应在以下文件中表示(我在Win2K8-R2上):

I'm currently playing around with the Microsoft.Web.Administration (MWA) namespace in order to adjust our application to configure IIS 7.5 with the new API. I understood that all IIS level changes should be expressed in the following file (I'm on Win2K8-R2):

%WINDIR%\System32\inetsrv\config\applicationHost.config

因此，当我使用ServerManager对象提交配置更改时，应相应地更新文件.

So, when I use the ServerManager object to commit the configuration changes the file should be updated accordingly.

添加新的MIME类型(使用MWA编程)后，在applicationHost.config file中没有看到任何更改，但是在IIS管理器窗口中确实看到了新的MIME类型，并且IIS可以毫无问题地识别此MIME类型.即使在重新启动操作系统之后-配置文件也不包含新添加的MIME类型，但是IIS管理器窗口会列出它.

After adding a new MIME type (programmatic with MWA) I did not see any changes in the applicationHost.config file, but I do see the new MIME type in the IIS manager window and IIS recognizes this MIME type without problems. Even after restating the OS - The config file does not contain the newly added MIME type, but the IIS manager window does list it.

因为我的应用程序池被强制设置为32位(Enable32BitAppOnWin64 = true)，所以我认为相关的配置文件应位于%WINDIR%\SysWOW64\inetsrv\Config下，但是(如果存在)...-之后它也不会更改该代码将提交更新.

Because my application pools are forced to 32-bit (Enable32BitAppOnWin64 = true), I thought that the related config file should be located under %WINDIR%\SysWOW64\inetsrv\Config, but (if it exists...) - it also does not change after the code commits the updates.

有人可以解释一下吗?我是否缺少某些内容(也许看错了文件?)?有人可以说明SysWOW64\inetsrv\config目录吗?

Can someone please explain this? Am I missing something (looking at the wrong file maybe?)? Can someone please shed some light on the SysWOW64\inetsrv\config directory?

这是我添加MIME类型的代码:

This is my code for adding the MIME type:

ServerManager manager = new ServerManager();
ConfigurationElementCollection staticContentCollection = manager
    .GetApplicationHostConfiguration()
    .GetSection("system.webServer/staticContent")
    .GetCollection();

//MIMETypes is a string[] array, each object is {FileExt},{MIMETypeStr}
foreach (string pair in MIMETypes)
{
    string[] mimeProps = pair.Split(',');

    ConfigurationElement mimeTypeEl = staticContentCollection
          .Where(a => 
                   (string)a.Attributes["fileExtension"].Value == mimeProps[0])
          .FirstOrDefault();


    if (mimeTypeEl != null)
    {
        staticContentCollection.Remove(mimeTypeEl);
    }

    ConfigurationElement mimeMapElement = 
                  staticContentCollection.CreateElement("mimeMap");

    mimeMapElement["fileExtension"] = mimeProps[0];
    mimeMapElement["mimeType"] = mimeProps[1];

    staticContentCollection.Add(mimeMapElement);
}

manager.CommitChanges();

//At this point all is working but the config file does not reflect the change