Why I got "Access Denied". (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) "when creating a user in Active Directory

Question

I use the following code to create a user in Active Directory

DirectoryEntry newUser = null;
            try
            {
                if (!Authenticate()) return null;

                newUser = location.Children.Add("CN=" + userName, "user");
                newUser.Properties["samAccountName"].Value = userName;
                newUser.Properties["cn"].Value = userName;

                newUser.CommitChanges();
                string guid = newUser.Guid.ToString();
                newUser.Invoke("SetPassword", new object[] { password });
                newUser.CommitChanges();
                DomainDirectoryEntry.Close();
                newUser.Close();
                return guid;
            }
            catch
            {
                throw;
            }
            finally
            {
                newUser = null;
            }

If I run this code from the asp.net webpage, it will create a user in Active Directory and it will be disabled, but it will throw an exception Exception has been thrown by the target of an invocation., and when I get an internal exception from this exception, I get Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDEN'Make sure the account, which I use to access Active Directory is the full administrator.

I do not determine the reason and why it creates the user, but generates an error when setting the password ... Can someone help me get the error?

Answer 1

, , , , SharePoint,

SPSecurity.RunWithElevatedPrivileges(delegate()
  {
     ......
  }

Answer 2

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, Active Directory?