Crimminy, folks, you don't need WinZip to unzip zip files. There are many free alternatives, like Stuffit Expander. Heck, if you've got a Java programmer anywhere, there's a whole "namespace" full of zip utilities,*. If you don't have to worry about macbinaries and the like, it'll take you about a second to write a zipper (and unzipper, of course) util.

Sorry; I just get tired seeing all the free commercials for WinZip. Not to mention that all these referrals wouldn't happen if WinZip wasn't true shareware [that never does anything more than nag (in other words, people only recommend it b/c it's "free as far as they're concerned")].

Phew. Rantish. Sorry again.