How to display a form from a dll, into app panel

Hi!

Does anybody know how to display a form stored within a dll, inside an
applications' panel

I can display a normal TForm in a TPanel within the same project, or
application:

Form1:= TForm1.Create(Panel1);
Form1.BorderStyle:= bsNone;
Form1.Align:= alClient;
Form1Parent:= Panel1;
Form1.Show;

I wish to do this, but only the form is stored within a dll.

thankyou