http://bugs.winehq.org/show_bug.cgi?id=23264
--- Comment #2 from rmlipman@gmail.com 2012-02-02 09:17:04 CST --- 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.