Create Virtual Directory and Set Permissions IIS7 - Cannot read configuration file due to insufficient permissions

I am trying to create a virtual directory and set it's permissions using IIS7 and C#. Here is a sample of my code:

using (ServerManager serverManager = new ServerManager(webSite))
{
    ConfigurationSection anonymousAuthenticationSection =
      config.GetSection(
          @"system.webServer/security/authentication/anonymousAuthentication",
          webSite);
    anonymousAuthenticationSection["enabled"] = true;

    serverManager.CommitChanges();
    return "true";
}

This throws an except开发者_JAVA技巧ion and the message is:

Cannot read configuration file due to insufficient permissions.

Can someone help?

EDIT

Running with administration privileges gives me a new error: "Enable to read configuration file" Can someone tell me which config it should be reading and how I can access it?

This sounds like your application doesn't have the correct permissions. To be able to manipulate IIS7's configuration the account your application runs under must be an Administrator account, or an account that is recognised by the trusted computing base such as the SYSTEM account.

If you're debugging this in Visual Studio, be sure to launch Visual Studio using the "Run as Administrator" feature in explorer or from the quicklaunch toolbar.

I was using the ServerManager obj incorrectly. It was not expecting the website name in the constructor. The following is the correct way to set anonymous access in IIS7.

using (ServerManager serverManager = new ServerManager())
                {
                    Configuration config = serverManager.GetApplicationHostConfiguration();
                    ConfigurationSection anonymouseAuthenticationSetion =                                            config.GetSection("system.webServer/security/authentication/anonymousAuthentication", webSite);
                    anonymouseAuthenticationSetion["enabled"] = true;