I recently discovered that not everyone has the ability to open the zipped files on this site. Here is what I use...and it's free!

I've been using thie program for years now and it's always worked without a hitch to unzip a foler - automatically.

When I want to zip it up (compress the file for easy uploading, downloading, or to send by email), I just right click on the folder and choose JustZipit.

Here's where I downloaded it from: http://free-backup.info/justzipit.html

And here is an alternative site: http://www.download.com/JustZIPit/3000-2250_4-10222609.html