@gulliver
Finally! Contextmenus worked with the older popupmenu.library. Thanks dude!
@bernd_afa
It worked after I enabled PW to display the igadget. I prefered to not have an igadget and iconify windows just with the hotkey. After I enabled the igadget the hotkey works again and the igadget is displayed ok (Visual Prefs mode). Only problem is that now on MUI windows I have 2 igadgets that function differently, but it's not a big deal, it works and it's ok. So, in short, that was the problem: When AFA is loaded and PW have the iconify gadget disabled, the windows won't iconify just with the hotkey. Thank you for helping me to sort this out!