I'm not sure if they are the same, but Archway makes delicious windmill cookies. They taste like the windmill cookies I remember from childhood and I do believe that we had Van de Kamps's then.
The Van de Kamp's item I remember most fondly though, was their golden cake with chocolate frosting with walnuts. They used to sell a half cake in a box with a window so you could see the inside of the cake -- with its nice lighter chocolate filling. Yummy! Does anyone else remember that?