Stuff

private void MenuClick(object sender, EventArgs e) {
    foreach (System.Type objType in SampleAssembly.GetTypes()) {
        if (objType.BaseType.ToString() == "System.Windows.Forms.Form" && objType.Name == sender.ToString()) {
            Object b = Activator.CreateInstance(objType);
            ((Form)b).Show();
        }
    }
}