<a href="http://www.natureformation.com/pmp/Formulaire-pour-etre-tenu-au-courant-des-stages-de-digitopuncture-n4.html" target="blank" height"600" width="400" align="center" alt" lien d'inscription à plus d'information sur la digitopuncture !"><em><i>Lien d'inscription gratuit</i></em></p>
I think you should use the popup feature of HTML Executable, as described here: http://www.htmlexe.com/help/popupwindows
For instance, you can use this JavaScript code: