C#如何来创建IIS虚拟目录

ComputerName：即操作的服务器的名字，可以是名字也可以是IP，经常用的就是localhost  

Service：即操作的服务器，IIS中有Web，也有FTP，还有SMTP这些服务，我们主要是操作IIS的Web功能，因此此处就是"W3SVC",如果是FTP则应是"MSFTPSVC"  

WebSite:一个IIS服务中可以包括很多的站点，这个就用于设置操作的站点。他的值是一个数字，默认是1，表示缺省站点，如果有其它，则从1开始依次类推。 

 using System;
using System.Collections.Generic;
using System.Text;
using System.DirectoryServices;

 namespace Install_IIS
{
    class IISManager
    {
        public IISManager() 
        { 
        } 
        /// <summary>
        /// 创建虚拟目录
        /// </summary>
        /// <param name="WebSite">服务器站点名称</param>
        /// <param name="VDirName">虚拟目录名称</param>
        /// <param name="Path"></param>
        /// <param name="RootDir"></param>
        /// <param name="chkRead"></param>
        /// <param name="chkWrite"></param>
        /// <param name="chkExecute"></param>
        /// <param name="chkScript"></param>
        /// <param name="chkAuth"></param>
        /// <param name="webSiteNum">1</param>
        /// <param name="serverName">localhost</param>
        /// <returns></returns>
        public string CreateVDir(string WebSite,string VDirName, string Path, bool RootDir, bool chkRead,bool chkWrite, bool chkExecute, bool chkScript, bool chkAuth, int webSiteNum, string serverName) 
        { 
            string sRet=String.Empty; 
            
            System.DirectoryServices.DirectoryEntry IISSchema; 
            System.DirectoryServices.DirectoryEntry IISAdmin; 
            System.DirectoryServices.DirectoryEntry VDir; 
            bool IISUnderNT;

            // 
            // 确定IIS版本
            // 
            IISSchema = new System.DirectoryServices.DirectoryEntry("IIS://" + serverName + "/Schema/AppIsolated"); 
            if(IISSchema.Properties["Syntax"].Value.ToString().ToUpper()=="BOOLEAN") 
                IISUnderNT=true; 
            else 
                IISUnderNT=false; 
            IISSchema.Dispose();

            // 
            // Get the admin object 
            // 获得管理权限
            // 
            IISAdmin=new System.DirectoryServices.DirectoryEntry("IIS://" +serverName +"/W3SVC/" + webSiteNum + "/Root");

           if (IISAdmin == null)
                return "IIS 未正常安装";
           if (IISAdmin.Children == null)
                return "IIS 可能未启动";

            // 
            // If we're not creating a root directory 
            // 如果我们不能创建一个根目录
            // 
            if (!RootDir) 
            { 
                // 
                // If the virtual directory already exists then delete it 
                // 如果虚拟目录已经存在则删除
                //

                foreach(System.DirectoryServices.DirectoryEntry v in IISAdmin.Children) 
                { 
                    if (v.Name == VDirName) 
                    { 
                        // Delete the specified virtual directory if it already exists 
                        try 
                        { 
                        IISAdmin.Invoke("Delete", new string [] { v.SchemaClassName, VDirName }); 
                        IISAdmin.CommitChanges(); 
                        } 
                        catch(Exception ex) 
                        { 
                        sRet+=ex.Message; 
                        } 
                    } 
                } 
            }   

            // 
            // Create the virtual directory 
            // 创建一个虚拟目录
            // 
            if (!RootDir) 
            { 
                VDir = IISAdmin.Children.Add(VDirName, "IIsWebVirtualDir"); 
            } 
            else 
            { 
                VDir = IISAdmin; 
            }

            // 
            // Make it a web application 
            // 创建一个web应用
            // 
            VDir.Properties["Path"][0] = Path; //设置虚拟目录指向的物理路径
            if (IISUnderNT) 
            { 
                VDir.Invoke("AppCreate", false); 
            } 
            else 
            { 
                VDir.Invoke("AppCreate", 1); 
            } 

            // 
            // Setup the VDir 
            // 设置虚拟目录
            // 
            VDir.Properties["AccessRead"][0] = chkRead; //设置读取权限
            VDir.Properties["AccessExecute"][0] = chkExecute; //设置执行权限
            VDir.Properties["AccessWrite"][0] = chkWrite; //设置写入权限
            VDir.Properties["AccessScript"][0] = chkScript; //执行权限
            VDir.Properties["DefaultDoc"][0] = "index.asp,Default.aspx";//设置默认文档,多值情况下中间用逗号分割
            VDir.Properties["AppFriendlyName"][0] = VDirName; //应用程序名称
            VDir.Properties["AuthFlags"][0] = 0;   //    设置目录的安全性，0表示不允许匿名访问，1为允许，3为基本身份验证，7为windows继承身份验证
            VDir.Properties["AuthNTLM"][0] = chkAuth; 
            VDir.Properties["EnableDefaultDoc"][0] = true; 
            VDir.Properties["EnableDirBrowsing"][0] = false; 

            // 
            // NT doesn't support this property 
            // NT格式不支持这特性
            // 
            if (!IISUnderNT) 
            { 
                VDir.Properties["AspEnableParentPaths"][0] = true; 
            }

            // 
            // Set the changes 
            // 设置改变
            // 
            VDir.CommitChanges();

           //下面的方法是得到所有属性名称的方法：
           foreach (PropertyValueCollection pvc in  VDir.Properties)
           {
               Console.WriteLine(pvc.PropertyName);
            }

            sRet+= "VRoot " +VDirName + " created!"; 
            return sRet; 
        }

         #region Properties 
        public string ServerName 
        { 
        get 
        { 
        return _serverName; 
        } 
        set 
        { 
        _serverName = value; 
        } 
        } 
        #endregion

        public static string VirDirSchemaName = "IIsWebVirtualDir";

        #region Private Members   
        private string _serverName;

        #endregion 
    } 
}

测试用：

MessageBox.Show(new IISManager().CreateVDir("localhost", "ietm", "c:\\myweb", false, true, false, false, true, false, 1, "localhost"));
这个我已投入项目中使用，可放心使用。