Its more likely more the poster not downloading it properly/a browser cache problem causing a corrupt download, etc..
WinRAR makes fully compatible "standard" ZIP files. So does 7-zip. So can WinZip (but it has options for non-standard varieties). Etc..
Checked out the details of the two different ZIP files; nothing unusual in the first one (v2.0 compatible, uses "normal" zip compression, standard headers, etc..). The second one you say you compressed with WinZip uses "maximum" compression (which is standard) but includes "extended timestamps" headers.
So (because compression turns me on), tried to unzip both versions with the standard: Info-ZIP's UnZip. No problems with either file.
Despite Window's built-in utilities in general being barely adequate, its "compressed folders" utility is ZIP 2.0 compatible. So the problem is more likely a bad download.