Okay, I'll give you steps on how to do this:

1. Go to a website that let's you upload zip files, preferrably FreeWebs

2. Make your website and upload your zip file.

3. Go you the Publish Games link.

4. Publish your game, and copy the link to your zip file.

5. Enter the link to your zip file link in the "Download URL" box.

6. Go to your games link, click the "Download game" link to test to see if it works.

You don't have to use WinZip at all in the process, to make the zip file, go to your game's file, go the Options, then Package Files, then pick your choices.