I download the source code asp.net can not extract!

I download the source code asp.net can not extract!

figure:/ zf / zip.html

decompression on a prompt:the compressed data file format unknown or has been damaged! !

you say:If the Web site of the data they have problems now?
I let my friends help me to download, he said that he could extract, and he compressed, to me, I can also extract the ! (This proves that I have no problem with the decompression software,)
It is even stranger:from the Web site to download the “Discuz! NT v2.5 SQL Server database version of the document that field.Zip” I have been able to extract normal! !
in their forum post, they said the normal data! !

I have to say the software in question, I had to uninstall and re-download from the Internet compression software, a heavy, or so! ! Decompression can not be! !

I downloaded here:
senz.com / events / discuznt / opensource.html