这玩意儿花了老子3天时间才搞定，用了几个小时写代码，而且当中还花了不少时间解决Win32: Access denied error的问题。当然我要指出的是，无论NETWORK SERVER帐户还是IUSR_<servername>帐户都不要设置过大的权限。对于WMI和IIS metabase的安全机理，我还是一无所知的。我只不过解决问题而已。

看代码

首先要从Internet信息服务（IIS）管理器中获取网站标识符，点击“网站”根节点，右侧“标识符”显示的就是网站的ID。默认网站的标识符通常是1。

获取网站标识的功能，我们要用到一个namespace，代码如下：

using System.Management;

下文所有’ServerName’都表示你的服务器名称，或者如果你的代码是本地运行的，也可以用一个点来表示。

创建一个站点，你会用到如下函数。这个函数返回新网站的ID，这样你可以进一步对这个网站进行操作。

public static string CreateWebsite(string serverName, string appPoolName, string ip,string pathToRoot, string hostName, string domainName, int port)
{
    ConnectionOptions options = new ConnectionOptions();
    options.Authentication = AuthenticationLevel.Connect;
    options.EnablePrivileges = true;
    options.Impersonation = ImpersonationLevel.Impersonate;
    ManagementScope scope = new ManagementScope(string.Format(@\\{0}\root\MicrosoftIISv2,
                            serverName), options);
    scope.Connect();
    ManagementObject oW3SVC = new ManagementObject(scope,
    new ManagementPath(@"IIsWebService='W3SVC'"), null);

    ManagementBaseObject[] serverBindings = new ManagementBaseObject[1];
    serverBindings[0] = CreateServerBinding(scope,
                        string.Format("{0}.{1}", hostName, domainName), ip, port);
    ManagementBaseObject inputParameters = oW3SVC.GetMethodParameters("CreateNewSite");
    inputParameters["ServerComment"] = string.Format("{0}.{1}", hostName, domainName);
    inputParameters["ServerBindings"] = serverBindings;
    inputParameters["PathOfRootVirtualDir"] = pathToRoot;
    ManagementBaseObject outParameter =
      oW3SVC.InvokeMethod("CreateNewSite", inputParameters, null);

    string siteId = Convert.ToString(
     outParameter.Properties["ReturnValue"].Value).Replace(
     "IIsWebServer='W3SVC/", "").Replace("'", "");
    ManagementObject oWebVirtDir = new ManagementObject(scope,
    new ManagementPath(string.Format(
        @"IIsWebVirtualDirSetting.Name='W3SVC/{0}/root'", siteId)), null);
    oWebVirtDir.Properties["AppFriendlyName"].Value =
             string.Format("{0}.{1}", hostName, domainName);
    oWebVirtDir.Properties["AccessRead"].Value = true;
    oWebVirtDir.Properties["AuthFlags"].Value = 5; // Integrated Windows Auth.
    oWebVirtDir.Properties["AccessScript"].Value = true;
    oWebVirtDir.Properties["AuthAnonymous"].Value = true;
    oWebVirtDir.Properties["AppPoolId"].Value = appPoolName;
    oWebVirtDir.Put();

    ManagementObject site = new ManagementObject(scope,
      new ManagementPath(Convert.ToString(
      outParameter.Properties["ReturnValue"].Value)), null);
    site.InvokeMethod("Start", null);
    return siteId;
}

创建一个虚拟目录：

public static void AddVirtualFolder(string serverName, string websiteId,string name, string path)
{
    ManagementScope scope = new ManagementScope(string.Format(@"\\{0}\root\MicrosoftIISV2", serverName));
    scope.Connect();

    string siteName = string.Format("W3SVC/{0}/Root/{1}", websiteId, name);

    ManagementClass mc = new ManagementClass(scope,new ManagementPath("IIsWebVirtualDirSetting"), null);
    ManagementObject oWebVirtDir = mc.CreateInstance();

    oWebVirtDir.Properties["Name"].Value = siteName;
    oWebVirtDir.Properties["Path"].Value = path;
    oWebVirtDir.Properties["AuthFlags"].Value = 5; // Integrated Windows Auth.
    oWebVirtDir.Properties["EnableDefaultDoc"].Value = true;
    // date, time, size, extension, longdate ;
    oW