程式碼加註釋，由於在.NET Core中也是支援PInvoke呼叫Win32庫的，所以下面的程式碼也適用於.NET Core程式：

using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Security.Principal;


namespace NetCorePrincipal
{
    internal static class WinLogonHelper
    {
        /// <summary>
        /// 模擬windows登入域
        
 
/// </summary>
        [DllImport("advapi32.DLL", SetLastError = true)]
        public static extern int LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);
    }

    class Program
    {
        static void Main(string
 
[] args)
        {
            IntPtr admin_token = default(IntPtr);
            WindowsIdentity wid_admin = null;
            WindowsImpersonationContext wic = null;

            //在程式中模擬域帳戶登入
            if (WinLogonHelper.LogonUser("uid", "serverdomain", "pwd", 9, 0, ref admin_token) != 0)
            {
                
 
using (wid_admin = new WindowsIdentity(admin_token))
                {
                    using (wic = wid_admin.Impersonate())
                    {
                        //假定要操作的檔案路徑是10.0.250.11上的d:\txt.txt檔案可以這樣操作
                        FileInfo file = new FileInfo(@"\\10.0.250.11\d$\txt.txt");
                        //想做什麼操作就可以做了
                    }
                }
            }
        }
    }
}

模擬域帳戶之後，就有了模擬使用者的許可權，這裡千萬要注意安全！

原文連結