调用dll中form，太古老了，可是

太古老了，可是用的不多。应该考虑商品化项目首选。

library Prj_dll;

{ Important note about DLL memory management: ShareMem must be the
  first unit in your library's USES clause AND your project's (select
  Project-View Source) USES clause if your DLL exports any procedures or
  functions that pass strings as parameters or function results. This
  applies to all strings passed to and from your DLL--even those that
  are nested in records and classes. ShareMem is the interface unit to
  the BORLNDMM.DLL shared memory manager, which must be deployed along
  with your DLL. To avoid using BORLNDMM.DLL, pass string information
  using PChar or ShortString parameters. }

uses
  SysUtils,
  Classes,
  Unit2 in 'Unit2.pas' {Form2};

{$R *.res}

exports  MyShow;

begin
end.

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    wb1: TWebBrowser;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

procedure MyShow; export;

implementation

{$R *.dfm}
procedure MyShow;
begin
  with TForm2.Create(Application) do
  begin
    ShowModal;
    Free;
  end;
end;

procedure TForm2.FormCreate(Sender: TObject);
begin
  wb1.Navigate('www.zc99.com');
end;

program prj;

uses
  Forms,
  Unit1 in 'Unit1.pas' {MainForm};

{$R *.res}

begin
  Application.Initialize;
  Application.MainFormOnTaskbar := True;
  Application.CreateForm(TMainForm, MainForm);
  Application.Run;
end.

unit Unit1;

interface

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

type
  TMainForm = class(TForm)
    btn1: TButton;
    procedure btn1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  MainForm: TMainForm;
procedure MyShow; far; external 'E:\prj_dll.dll';
implementation

{$R *.dfm}

procedure TMainForm.btn1Click(Sender: TObject);
begin
 MyShow;
end;

end.