Adding a local user with a password

Compiler: Visual C++ Express Edition 2005

Compiled on Platform: Windows XP Pro SP2

Target platform: none, just for learning and fun

Header file: Standard and Windows

Additional library: Windows Platform SDK

Additional project setting: Set project to be compiled as C

Project -> your_project_name Properties -> Configuration Properties -> C/C++ -> Advanced -> Compiled As: Compiled as C Code (/TC)

Other info: non-CLR or unmanaged. Need to add netapi32.lib (netapi32.dll) to the project. Click the Project menu->Select the your_project_name Properties... sub menu->Expand the Configuration Properties folder on the left pane->Expand the Linker subfolder->Select the Input subfolder->Select the Additional Dependencies field on the right pane->Click the ... at the end of the field->Type in 'netapi32.lib' in the empty pane->Click the OK button->Click the OK button second time to close the project Properties dialog or use #pragma comment(lib, "netapi32.lib")

To do: Adding a local user with password

To show: The windows user management functions

//********* cplus.cpp **********

// For WinXp

#define _WIN32_WINNT 0x0501

// Wide character/Unicode based program

#ifndef UNICODE

#define UNICODE

#endif

#include <windows.h>

#include <stdio.h>

#include <lm.h>

// Creating new user account with password...

// This program accept 3 arguments: servername, username and password.

// It is run on local WinXp machine so the servername is the

// local WinXp machine name or you can use NULL for the 1st parameter

// of the NetUserAdd() and arguments, should be without the servername.

int wmain(int argc, wchar_t *argv[])

{

USER_INFO_1 ui;

DWORD dwLevel = 1;

DWORD dwError = 0;

NET_API_STATUS nStatus;

if(argc != 4)

{

fwprintf(stderr, L"Usage: %s ServerName UserName Password.\n", argv[0]);

fwprintf(stderr, L"For example: %s mypersonal \"sonofbitch\" xyz123.\n", argv[0]);

// or use fwprintf(stderr, L"Usage: %s UserName Password.\n", argv[0]);

// for local machine and adjust other argc and argv[] array element appropriately.

exit(1);

}

// Set up the USER_INFO_1 structure.

// USER_PRIV_USER: name identifies an normal user

// UF_SCRIPT: required for LAN Manager 2.0 and Windows NT and later.

ui.usri1_name = argv[2]; // Username entered through command line

ui.usri1_password = argv[4]; // Password

ui.usri1_priv = USER_PRIV_USER; // As a normal/restricted user

ui.usri1_home_dir = NULL; // No home directory

ui.usri1_comment = L"This is a test normal user account using NetUserAdd()"; // Comment

ui.usri1_flags = UF_SCRIPT; // Must be UF_SCRIPT

ui.usri1_script_path = NULL; // No script path

// Call the NetUserAdd() function, specifying level 1.

nStatus = NetUserAdd(argv[1],

dwLevel,

(LPBYTE)&ui,

&dwError);

// If the call succeeds, inform the user.

if(nStatus == NERR_Success)

{

fwprintf(stderr, L"%s user has been successfully added on %s machine.\n", argv[2], argv[1]);

fwprintf(stderr, L"Username: %s password: %s.\n", argv[2], argv[3]);

}

// Otherwise, print the system error.

else

fprintf(stderr, "A system error has occurred: %d\n", nStatus);

return 0;

}

Output example:

(This program run at the command prompt)

F:\vc2005project\cplus\debug>cplus

Usage: cplus ServerName UserName Password.

For example: cplus mypersonal "sonofbitch" xyz123.

F:\vc2005project\cplus\debug>cplus mypersonal sonofgood 123xyz

sonofgood user has been successfully added on mypersonal machine.

Username: sonofgood password: 123xyz.

F:\vc2005project\cplus\debug>

Verify the group membership addition. For Win Xp Pro SP2, click Start->Programs->Administrative Tools->Computer Management->Expand the System Tools folder on the left pane->Expand the Local Users and Groups->Click the Groups subfolder->On the right pane, select and right click 'mytestgrp' group and select the Properties context menu. You should see the 'testuser' user has been added as a member of the group. Test also for the domain group.