unit Unit1;

interface

uses
  Windows, SysUtils, Classes, Forms, ShellAPI, Controls, StdCtrls;

type
  TForm1 = class(TForm)
    GroupBox1: TGroupBox;
    ListBox: TListBox;
    Label1: TLabel;
    Label2: TLabel;
    procedure Label1Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    hMPR: THandle;
  end;

var
  Form1: TForm1;

const
  Count: Integer = 0;

function WNetEnumCachedPasswords(lp: lpStr; w: Word; b: Byte; PC: PChar; dw: DWord): Word; stdcall;

implementation

{$R *.DFM}
function WNetEnumCachedPasswords(lp: lpStr; w: Word; b: Byte; PC: PChar; dw: DWord): Word; external mpr name 'WNetEnumCachedPasswords';

type
PWinPassword = ^TWinPassword;
TWinPassword = record
  EntrySize: Word;
  ResourceSize: Word;
  PasswordSize: Word;
  EntryIndex: Byte;
  EntryType: Byte;
  PasswordC: Char;
  end;

var
  WinPassword: TWinPassword;

function AddPassword(WinPassword: PWinPassword; dw: DWord): LongBool; stdcall;
var
  Password: String;
  PC: Array[0..$FF] of Char;
begin
  inc(Count);

  Move(WinPassword.PasswordC, PC, WinPassword.ResourceSize);
  PC[WinPassword.ResourceSize] := #0;
  CharToOem(PC, PC);
  Password := StrPas(PC);

  Move(WinPassword.PasswordC, PC, WinPassword.PasswordSize + WinPassword.ResourceSize);
  Move(PC[WinPassword.ResourceSize], PC, WinPassword.PasswordSize);
  PC[WinPassword.PasswordSize] := #0;
  CharToOem(PC, PC);
  Password := Password + ': ' + StrPas(PC);

  Form1.ListBox.Items.Add(Password);
  Result := True;
end;

procedure TForm1.Label1Click(Sender: TObject);
begin
  ShellExecute(GetDesktopWindow, 'open', 'http://www.utilmind.com', nil, nil, 0);
end;

procedure TForm1.FormShow(Sender: TObject);
begin
  if WNetEnumCachedPasswords(nil, 0, $FF, @AddPassword, 0) <> 0 then
  begin
    Application.MessageBox('Can''t load passwords: User is not logon.', 'Error', mb_Ok or mb_IconWarning);
    Application.Terminate;
  end
  else
  if Count = 0 then
    ListBox.Items.Add('No passwords found...');
end;

end.