Using Winrar 3.93 worked (as you stated) but what's so difficult about editing the *.zip? Just don't extract it, double click on the file inside *.zip and when you save/exit editor, it will ask if you wants to update the *.zip file. So simple!
"You know the very powerful and the very stupid have one thing in common. They don't alter their views to fit the facts. They alter the facts to fit the views." -DrWho
Do NOT PM me with requests or for fixes to your problem. Post in thread instead. All communications in English only!