Comment 12 for bug 256520

> Wine now "updates" prefixes automatically when it detects that it's running a new version. It may not be possible to prevent it from overwriting existing settings if you use that method.

I don't understand what this means. It would overwrite the user's settings and force the flat menus when it is upgraded?

"Note: wineprefixcreate is deprecated and should not be needed anymore. WINEPREFIX creation and updates now happen automatically when needed by wineboot. The functionality provided by wineprefixcreate has moved off to more suitable places (aka wine.inf and wineboot)."

"Additionally wineboot will automatically update the WINEPREFIX directory if wine.inf changes (eg as a result of upgrading to a new Wine release)." http://wiki.winehq.org/wineboot