random .NET and web development musings

The objectives for this post are to outline how to:

  • Create a user account in AD
  • Create a folder to hold the website code and assign the user read/execute rights
  • Grant the user access to use ASP.NET
  • Create an app pool running as our new identity
  • Create an iis site assigned to the app pool and pointing at our folder

First off you will need to add a reference to Microsoft.web.Administration.dll, which is in


These are the namespaces you’ll need:

using System;
using System.Diagnostics;
using System.DirectoryServices.AccountManagement;
using System.IO;
using System.Security.AccessControl;
using Microsoft.Web.Administration;

To begin we need to get a handle on AD, specifically the container where we want our user to be created:

var usersContext = new PrincipalContext(ContextType.Domain, "MyDomain", "ou=Users,ou=MyDomain,dc=MyDomain");

Next we create the user:

var webUser = new UserPrincipal(usersContext, "username", "password", true);

We then need to grant access to ASP.NET for the user (perhaps with v2 instead of v4)

Process.Start(@"c:\windows\microsoft.net\framework64\v4.0.30319\aspnet_regiis.exe", "-ga username");

Next we create the directory where we want the code to be housed, and grant the user read and execute permission on the folder:

var deploymentDir = Directory.CreateDirectory(fullPath);
var deploymentDirSecurity = deploymentDir.GetAccessControl();

deploymentDirSecurity.AddAccessRule(new FileSystemAccessRule("MyDomain\" + webUser.Name, FileSystemRights.ReadAndExecute, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow));


Now we can create the app pool:

var manager = new ServerManager();

var applicationPool = manager.ApplicationPools.Add("My new app pool");

applicationPool.ManagedPipelineMode = ManagedPipelineMode.Integrated;
applicationPool.ProcessModel.IdentityType = ProcessModelIdentityType.SpecificUser;
applicationPool.ProcessModel.UserName = parameters.Username;
applicationPool.ProcessModel.Password = parameters.Password;

And then the site:

var site = manager.Sites.Add("My new IIS site", "http", ":80:mydomain.com", fullPath);
site.Applications[0].ApplicationPoolName = "My new app pool";


And there you have it :)

March 26, 2013

Thanks ! I was trying to get application pool identity for existing app pool and this blog helped a lot. I learned that ProcessModel holds that information.

Post a comment