I'm sorry if I have upsetted several people by posting this message.

I have been using LW since 3 years ago. Extraction from zip file works on some other computers but does not work with mine. So I think I do know quite a bit about the problem I am encoutering now.

I do know how to distinguish between the dangerous and safe .ZIP and .RAR Files. I have always been downloading safe one on another computer and I was able to extract the files safely... all of them were not viruses. My problem is that once I have changed my computer, I can no longer do the extraction with my new computer.

By the way, the .ZIP file is a book (scanned ones), not a program or a game.