Open it into Director? Don't understand what your wanting to do so I'll let you know how to unzip a .zip file with director.
To open a zip file you would need to use winzip or something similar. Best bet would be a command line freeware appilcation so you can distribute it. PkUnzip was the original .zip file unzipper all those years ago before windows, don't know if its still around. then you would use code like open "c:\pkunzip.exe -x my.zip myziplocation" Total guess on the switches for pkunzip, that was a long time ago I was doing it all command line.
If you wanted to do something different just post again with a more specific question.