unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    LinkLabel1: TLinkLabel;
    procedure FormCreate(Sender: TObject);
    procedure LinkLabel1LinkClick(Sender: TObject; Link: string;
      LinkType: TSysLinkType);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

uses ShellAPI;

procedure TForm1.FormCreate(Sender: TObject);
begin
  LinkLabel1.Caption := '<a href="http://del.cnblogs.com">万一的 Delphi 博客</a>';
end;

procedure TForm1.LinkLabel1LinkClick(Sender: TObject; Link: string;
  LinkType: TSysLinkType);
begin
  ShellExecute(0, nil, PChar(Link), nil, nil, 1);
end;

end.

object Form1: TForm1
  Left = 23
  Top = 87
  Caption = 'Form1'
  ClientHeight = 122
  ClientWidth = 291
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  Position = poDesigned
  OnCreate = FormCreate
  PixelsPerInch = 96
  TextHeight = 13
  object LinkLabel1: TLinkLabel
    Left = 24
    Top = 24
    Width = 53
    Height = 17
    Caption = 'LinkLabel1'
    TabOrder = 0
    OnLinkClick = LinkLabel1LinkClick
  end
end