Re: One of last problems on computer
If you don't know how to use Google how the heck did you find this forum? You just guessed the URL?
By the way, if you still have the files you wouldn't need to repair the zip file, just create it again. I'm guessing you don't have them or you wouldn't be asking about it, but just in case.
How did you create the file? Did you copy it from somewhere or are you trying to open it from it's original location? Did you interrupt the archiving process?
If you copied it, maybe it was the transfer that went wrong, and maybe copying it again would solve the problem.
As it was already recommended, 7-zip is the best file archiver you'll find out there, and extremely simple.
"Perception without comprehension is a dangerous combination."