unit Unit1; 

{ This unit shows how you can establish a connection to the internet without any 
 user interaction.} 


interface 

uses 
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, 
 Dialogs, StdCtrls; 

type 
 TForm1 = class(TForm) 
 Button1: TButton; 
 Button2: TButton; 
 edtEntry: TEdit; // holds the name of the connection, e.g. 'bluewin' 
 edtUser: TEdit; // the username for the above connection 
 edtPass: TEdit; // and the password 
 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 
 // establish the connection 
 // die Verbindung aufbauen 
 // rasdial.exe entryname username password 
 cmd := 'open'; 
 fil := 'rasdial.exe'; 
 par := PChar(edtEntry.Text + ' ' + edtUser.Text + ' ' + edtPass.Text); 
 dir := 'C:'; 
 // call rasdial.exe with Shellexecute 
 // rasdial mit Shellexecute aufrufen 
 ShellExecute(Self.Handle, cmd, fil, par, dir, SW_SHOWMINNOACTIVE); 
end; 


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