http://bugs.winehq.org/show_bug.cgi?id=24816
--- Comment #11 from Dan Kegel dank@kegel.com 2011-02-04 18:08:36 CST --- That log says
wine: cannot find L"C:\windows\system32\WebPlus.exe"
which makes me think you aren't in the directory where the installer is located. Either give an absolute path to the installer, or (usually better) cd to the directory containing the installer before you run it.