http://bugs.winehq.org/show_bug.cgi?id=32360
--- Comment #10 from Erich Hoover ehoover@mines.edu 2013-02-03 08:23:20 CST --- Michael,
I've done some more diagnostics and I can confirm that your issue is different from this one, though it still stems from the same change. What appears to be going on here is that the default ACL for registry keys is not accepted by the Opera installer. I've put together a patch to fix your issue, would you mind opening a new bug for the issue that depends on this one?