Form display behavior

In a multi-form (non MDI) app, when you show all forms at runtime, the user can click on one form and only it will come to the top of the zorder. If you set the 'ShowInTaskbar' property of the forms to false and run the app again, now when the user clicks on one of the forms, all forms come to the top of the zorder. In the app that I'm developing, I would like only the form that has been clicked on to come to the top of the zorder, but I do not want the forms to show up on the taskbar. Is there any way to do this?