根據進程令牌來完成計算機之間文件拷貝

    using System.Runtime.InteropServices; //添加引用

//引用系統win32 Api

    
    //http://msdn.microsoft.com/zh-cn/library/aa378184(v=VS.85)
    public class IdentityScope : IDisposable
    {
        private bool disposed;

        [DllImport("Advapi32.dll")]
        private static extern bool LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, LogonType dwLogonType, LogonProvider dwLogonProvider, out IntPtr phToken);

        [DllImport("Advapi32.DLL")]
        private static extern bool ImpersonateLoggedOnUser(IntPtr hToken);

        [DllImport("Advapi32.DLL")]
        private static extern bool RevertToSelf();

        [DllImport("Kernel32.dll")]
        private static extern int GetLastError();


        public IdentityScope(string domain, string userName, string password)
            : this(domain, userName, password, LogonType.Interactive, LogonProvider.Default)
        {
        }

        public IdentityScope(string domain, string userName, string password, LogonType logonType, LogonProvider logonProvider)
        {
            if (string.IsNullOrEmpty(userName))
                throw new ArgumentNullException("userName");

            if (string.IsNullOrEmpty(domain))
                domain = ".";

            IntPtr token;
            int errorCode = 0;

            if (LogonUser(userName, domain, password, logonType, logonProvider, out token))
            {
                if (!ImpersonateLoggedOnUser(token))
                    errorCode = GetLastError();
            }
            else
                errorCode = GetLastError();

            if (errorCode != 0)
                throw new System.ComponentModel.Win32Exception(errorCode);
        }


        ~IdentityScope()
        {
            Dispose(false);
        }

        protected virtual void Dispose(bool disposing)
        {
            if (!disposed)
            {
                if (disposing)
                {

                }
                RevertToSelf();
                disposed = true;
            }
        }

        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
    }

    public enum LogonType : uint
    {
        Interactive = 2,
        Network = 3,
        Batch = 4,
        Service = 5,
        Unlock = 7,
        NetworkClearText = 8,
        NewCredentials = 9
    }

    public enum LogonProvider : uint
    {

        Default = 0,
        WinNT35 = 1,
        WinNT40 = 2,
        WinNT50 = 3,
    }

    public enum ProcessCode : uint
    {
        Result = 1,
        Success = 2,
        Failure = 4        
    }

    public class Program
    {

        static void Main()
        {
            try
            {
                string IpAddr = "192.168.1.23";
                string souceFileName = "D:\\abc.txt";
                string targetFileName = "\\192.168.1.23\\D$\\abc.txt";
                string UserName = "Administrator";
                string Password = "123456";
                //信令拷beike
                using (new IdentityScope(IpAddr
                    , UserName
                    , Password
                    , LogonType.NewCredentials
                    , LogonProvider.WinNT50))
                {

                    System.IO.File.Copy(souceFileName, targetFileName, true);
                }
            }
            catch (Exception e)
            {

            }
        }
    }

更多信息參見:http://msdn.microsoft.com/zh-cn/library/aa378184(v=VS.85)