If you're going to give me more of your nonsense answers, you might want to read into that a bit further and you'll see that "Windows Compression" is a very low level and non-compatible compression. It plays well by itself but not well with anyone else.
Oddly enough, EPUB files are RAR compressed files which are zip extractable - unless the original file is trashed, in which case no-one extracts it.
And since you're going to give me answer, want to take a look at the snippet and see what's wrong? Oh, the file under discussion is a trashed file, only part of the header is there (Calibre has put together a few of these) any ideas why the catch doesn't catch it?