http://bugs.winehq.org/show_bug.cgi?id=19077
--- Comment #6 from Andrew Nguyen arethusa26@gmail.com 2010-06-05 04:48:30 --- Neither my system's 7za nor the 7-Zip GUI running on Wine is able to handle the 7z archive you attached. Could you recompress as a ZIP file or other easily readable format? That said, I tested the sample application on wine-1.2-rc2-111-g9aa9a12 by pressing the "Save file" button, selecting My Documents, then specifying "example.txt" as the filename. This seemed to work for me, along with opening the example file with a similar procedure. Is this problem therefore fixed?