unit Unit1;

interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    edtEntry: TEdit;
    edtUser: TEdit;
    edtPass: TEdit;
    
procedure Button1Click(Sender: TObject);
    
procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
uses shellapi;
{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  cmd, par, fil, dir: PChar;
begin
  cmd := 'open';
  fil := 'rasdial.exe';
  par := PChar(edtEntry.Text + ' ' + edtUser.Text + ' ' + edtPass.Text);
  dir := 'C:';
  ShellExecute(Self.Handle, cmd, fil, par, dir, SW_SHOWMINNOACTIVE);
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  cmd, par, fil, dir: PChar;
begin
  cmd := 'open';
  fil := 'rasdial.exe';
  par := PChar(edtEntry.Text + ' /DISCONNECT');
  dir := 'C:';
  ShellExecute(Self.Handle, cmd, fil, par, dir, SW_SHOWMINNOACTIVE);
end;
end.
