Problems with Downloaded Archives
One of the most common problems with downloading is an error introduced into the downloaded file during the download. Such an error is usually due to some sort of communications error (for example, noise in a phone line) that caused the file you downloaded to be corrupted. In such a case, when you try to open the archive using WinZip, you will very likely see this message:
Cannot open file: it does not appear to be a valid archive.
Almost always, discarding the damaged file and downloading a new copy will correct this problem.
Another problem you may experience is clicking a link on a Web page, and, after a delay, seeing an error message your browser displays. The error message may indicate that your browser could not find the Internet site where the file is located; or that the Internet site is not available; or that the file itself could not be found; or that the site is too busy to give you access. In such a case, it is possible that the site to which the link points is down for some reason.
Another possibility is that the link you clicked points to an obsolete location, and the file, or the site itself, to which the link points has been deleted or moved. In such a case, you may need to do some research to find where the file or site has been moved.