使用c#创建IIS站点时出错，提示拒绝访问 未处理COMException，只有35分了，会的朋友帮帮忙，谢谢！
以下是程序
System.DirectoryServices.DirectoryEntry IISSchema;
System.DirectoryServices.DirectoryEntry IISAdmin;
System.DirectoryServices.DirectoryEntry VDir;
bool IISUnderNT;
string serverName = "localhost";
//Install.Installer install = new Install.Installer();
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/1/Root");
VDir = IISAdmin;
VDir.Properties["AppFriendlyName"][0] = ""; //应用程序名称
VDir.Properties["AccessRead"][0] = true; //设置读取权限
VDir.Properties["AccessExecute"][0] = false;
VDir.Properties["AccessWrite"][0] = false;
VDir.Properties["AccessScript"][0] = true; //执行权限[純腳本]
//VDir.Properties["AuthNTLM"][0] = chkAuth;
VDir.Properties["EnableDefaultDoc"][0] = true;
VDir.Properties["EnableDirBrowsing"][0] = false;
VDir.Properties["DefaultDoc"][0] = "Default.aspx,Index.aspx,Index.asp"; //设置默认文档,多值情况下中间用逗号分割
VDir.Properties["Path"][0] = @"D:\WORK\A3B2B";
VDir.Properties["AuthFlags"][0] = 1;
//
// 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();
MessageBox.Show("创建成功！");
红色部分报错，提示信息：拒绝访问 未处理COMException --------------------编程问答-------------------- --------------------编程问答-------------------- VDir.Properties["AppFriendlyName"][0] = "";
这里开始报错，提示信息：拒绝访问 未处理COMException --------------------编程问答-------------------- --------------------编程问答-------------------- 有熟悉的么 --------------------编程问答-------------------- --------------------编程问答-------------------- DirectoryService好像是只要property不存在就会出异常的
补充：.NET技术 , ASP.NET
