CODEWITHSUNDEEP
c#visual-studio
Saran
Saran

Reputation: 935

Create Windows User Using c# code

I want to create a windows user using c# code. Below methods works fine when the logged in user is having Administratorive privilage. It is not working with the limited user. Note that I can pass the windows user name and password of the administrator user. Basically I want to impersonate. I tried impersonation it did not work. I tried passing user namd and password to the processinfo. I got the error "The stub received bad data". So can any one help me on how to create the windows user using c# code by impersonation.

    public static void CreateUser(string userName, string password, string description, string adminUserName, string adminPassword)
    {
        Process process = new Process();
        ProcessStartInfo processInfo = new ProcessStartInfo();
        processInfo.WorkingDirectory = Environment.SystemDirectory;
        processInfo.FileName = "net.exe";
        processInfo.UseShellExecute = false;
        processInfo.RedirectStandardError = true;
        processInfo.RedirectStandardInput = true;
        processInfo.RedirectStandardOutput = true;
        processInfo.WindowStyle = ProcessWindowStyle.Hidden;

        processInfo.Arguments = @" user " + userName + @" " + password + @" /ADD /ACTIVE:YES " +
          @"/EXPIRES:NEVER /FULLNAME:" + userName + @" /PASSWORDCHG:NO /PASSWORDREQ:YES";


        if (!string.IsNullOrEmpty(adminUserName))
        {
            processInfo.UserName = adminUserName;
            processInfo.Password = WindowsSecurityHelper.GetSecuredString(adminPassword);
        }
        process.StartInfo = processInfo;
        process.Start();
        process.WaitForExit();
        process.Close();

    }

or

    public static void CreateUser(string userName, string password, string description, string userGroup = "Users")
    {
        PrincipalContext pc = new PrincipalContext(ContextType.Machine, null);
        GroupPrincipal gp = GroupPrincipal.FindByIdentity(pc, userGroup);
        if (gp != null)
        {
            UserPrincipal u = new UserPrincipal(pc);
            u.SetPassword(password);
            u.Name = userName;
            u.Description = description;
            u.UserCannotChangePassword = true;
            u.PasswordNeverExpires = true;
            u.Save();

            gp.Members.Add(u);
            gp.Save();
        }
    }

Upvotes: 3

Views: 2243

Answers (2)

Justin Bannister
Justin Bannister

Reputation: 618

I had the same error and found that I needed to specify the Domain parameter in the ProcessStartInfo.

Upvotes: 0

Oded
Oded

Reputation: 499152

You can use the Process class with different credentials - instead of setting it directly, use ProcessStartInfo.

You can set a UserName and Password on the ProcessStartInfo class for the user you wish to execute as (Password is a SecureString, by the way) - pass this to the Process constructor and you are good to go.

ProcessStartInfo startInfo = new ProcessStartInfo("net.exe");
startInfo.UserName = Administrator;
startInfo.Password = ...;

...

Process.Start(startInfo);

Upvotes: 3

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