Long file names still a problem in Vista

Apparently there is a bug in how Vista handles long file names, and it can easily be reproduced. When I download files from Microsoft Update Catalog, the file names of the files that are downloaded are very long, but still not that long. The files are saved to the NTFS formatted hard drive and I can use Windows built-in function to compress the files to a zip file. So far so good, the problems arise when I want to extract the compressed files, where Vista then says that the filename is too long for the file system to handle. This makes me wonder how I could first save the file to my computer, then zip it, but now I am not allowed to extract it? Strange to say the least!