Your copy of Winzip has nothing to do with this game and there's nothing the devs need to fix. You can unzip the file with Windows 10 naturally without Winzip. Just right click on the file and choose "Extract All" from the menu.
Don't buy Winzip. Go to http://download.cnet.com/7-Zip-64-bit/3000-2250_4-10905593.html and get a program called 7zip. It is free, and works perfectly.