http://bugs.winehq.org/show_bug.cgi?id=24196
--- Comment #5 from Austin English austinenglish@gmail.com 2013-09-11 18:30:41 CDT --- (In reply to comment #4)
Commit http://source.winehq.org/git/wine.git/commit/f1398510df7687d36006714b1429583... could help this case, could you please retest?
It now fails earlier in wine-1.7.1-209-gc191f62 as compared to wine-1.4.
The failure now is: err:msi:ITERATE_Actions Execution halted, action L"CA_Check64OS.3643236F_FC70_11D3_A536_0090278A1BB8" returned 1603
failing before the installation steps themselves start (according to the GUI, at least).
Note that if you have the mono installer cached, you'll likely need to move it out of the way, since it can't be uninstalled in a 64-bit wineprefix (bug 34490). I'll attach some logs.