hey im trying to create an menu addin, i can create the menu item and but all of the submenu items are disabled? is there a differnet function that should be used?

Code:
ghwnd_Kazaa = FindWindow("KaZaA",NULL);
hKazaaMain = GetMenu(ghwnd_Kazaa);
HMENU hSubMenu = NULL;
hSubMenu = CreatePopupMenu();
AppendMenu(hSubMenu,MF_STRING | MF_ENABLED,MENU_ADDIN,"A&ddIn");
AppendMenu(hKazaaMain,MF_STRING | MF_POPUP | MF_ENABLED,(UINT_PTR)hSubMenu,"A&ddIn");
SetMenu(ghwnd_Kazaa,hKazaaMain);
cheers