http://bugs.winehq.org/show_bug.cgi?id=17116
--- Comment #7 from Luca Bennati lucak3@gmail.com 2009-08-12 09:41:58 --- With wine-1.1.27-63-g862bd3c and MinGW 5.1.4, the Next button in question works just fine, and i can reach the extraction part. However, there it fails with "tgz_extract: bad header checksum Error: Failure reading from tarball".
For the WM topic: mine is KWin from KDE 4.3