http://bugs.winehq.org/show_bug.cgi?id=23264
--- Comment #4 from rmlipman@gmail.com 2012-02-26 13:00:24 CST --- (In reply to comment #3)
(In reply to comment #2)
To add to this, the installer will fail when it can't start the service. The program doesn't get uninstalled until you click finish on the "The install was unsuccessful, your system will be rolled back" step, so until you click finish you can still test the install.
I was able to install it today with the latest installer.
I can confirm it installs correctly, but now the launcher can't connect to the authentication service. At this point it's probably a separate bug.