Replacing window Moldings front & rear (R33)

Hi! I have a question regarding changing the window moldings on a R33 Gtst front and rear.

The part numbers for the items is the following:
* 72752-22U00 OEM Windshield Molding
* 72725-24U00 Front Window Moulding
* 79780-24U00 Molding fastener
* 79752-22U00 Rear Window Moulding

I wonder, do you need to remove the windows to be able to replace the seals?

I've heard peolpe say that you need to take the windows out and some say you don't.
If anyone know the correct answer or has done it could you please share, because I want to repalce them on mine.

Thanks.