Do you have an unzip program? The following will unzip files: Winzip, Winrar, StuffIt Expander or this one which is free http://www.warp2search.net/forums/viewtopic.php?t=4139 Just google the others if you'd prefer those.

By the way, you can't unzip a file from LW by launching it. You must do it outside of LW!!! Select the Saved Files folder & press Explore button & the folder will open up for you.